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CHAPTER II. BACKGROUND
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Introduction
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Los Angeles is the second largest city in the United States and the
largest city in California. The City includes Downtown Los Angeles, the
primary employment center of the entire region; as well as some of the
largest residential, commercial and industrial clusters; entertainment
and visitor centers; a major international airport; a major harbor; and
other major land uses. All these diverse land uses have a vital
dependency on efficient transportation and they heavily influence travel
patterns throughout the region. The nation's most traveled and congested
freeways, as well as some of the most congested surface streets in Los
Angeles County, are located within the City of Los Angeles
1.
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The existing City of Los Angeles Highways and Freeways Element was first
adopted in 1959. Circulation Element policy statements are
contained in each of the 35 Community Plans. The focus of the Highways
and Freeways Element was the expansion of the City's transportation
network through large infrastructure investments. Since 1959, a number of
factors have emerged which would indicate that significant construction
of new highway infrastructure is impractical. Due to the air quality
problems of the South Coast Air Basin, the Federal government has imposed
severe air quality guidelines, taking into account that almost 50% of the
pollutants come from mobile sources. There is increasing community
opposition to freeway construction projects in urbanized areas. In
addition, with more competing demands on the State's and City's financial
resources and the escalating construction cost of new streets and
freeways, less public investment can be committed to infrastructure
development. For environmental and fiscal reasons, it is clear that
the primary emphasis on building our way out of the congestion problem is
no longer viable.
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With the advent of the Congestion Management Program and the completion
of the Citywide General Plan Framework Element, the City has shifted its
approach to solving transportation and air quality problems by linking
population and employment concentrations with transit systems. The
ongoing development of an extensive regional transit system presents
opportunities for moving towards the goal of less dependence on the
automobile. The Framework's more pedestrian friendly vision and the
correlation between proposed land use intensity and the transit system
will reduce the City's dependence on the automobile and improve the
City's quality of life. The effect of a more responsive transit system is
in line with the pursuit of a more liveable city and responds effectively
to Federal air quality mandates. This Transportation Element supports the
strong link between land use and transportation and advocates an
integrated and balanced solution of demand management and capacity
enhancements. It also strongly supports the enhancement of the transit
system to compete effectively as an alternative to the automobile.
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CITY PLANNING AREA DESCRIPTION
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The City of Los Angeles encompasses an area of about 465 square miles.
The City is bordered by the San Gabriel Mountains on the north, developed
communities on the east, the Santa Monica Mountains on the northwest, and
Santa Monica Bay and the Pacific Ocean on the south and west. The City is
geographically divided into 35 community planning areas and 15 Council
Districts. (Figure 1).
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DEMOGRAPHICS
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1998 demographic information is available from the demographics page.
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| Population |
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The City of Los Angeles, with a 1990 population of 3,485,398 persons, is
the second largest city in the nation and the most populous city in the
State. Between 1980 and 1990 the City's population increased by 17.5%,
from 2,966,850. The City's population is projected to reach 4,306,564 by
2010, a 23.6% increase over the 1990 population. The most populous
Community Plan Areas are Wilshire, South Central, Southeast, Northeast,
and Hollywood. In 1990, these communities accounted for over 1.2 million
residents or 35% of the City's population. By 2010 these five plan areas
are expected to accommodate almost 1.5 million of the City's 4.3 million
residents (Table 1*). For Los
Angeles County the largest growth will be experienced in the North County
area (Figure 2).
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| Housing |
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In 1990 the total number of dwelling units in the City was 1,299,963, of
which 519,692 or approximately 40% were single family. From 1980 to 1990,
the total dwelling units citywide increased by 9.29% but single family
units decreased by 7,100. The total dwelling unit count in the City is
expected to reach 1,566,108 by year 2010. By 2010, multifamily dwelling
units are projected to account for 65.2% or 1,021,187 of the citywide
total. The communities of Wilshire, Hollywood, South Central, Northeast
Los Angeles, West Adams - Baldwin Hills - Leimert, and Southeast Los
Angeles are projected to account for the highest number of dwelling
units, as they did in 1990
(Table 2*).
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| Employment |
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In 1990 there were 1,902,057 jobs located in the City. The communities of
West Los Angeles (85,931), Southeast Los Angeles (95,404), Hollywood
(96,152), Canoga Park - Winnetka - Woodland Hills (103,084), Wilshire
(158,360), and Central City (240,176) accounted for almost 780,000 jobs.
By 2010 it is estimated that the City's employment share will increase
by 389,424 to 2,291,481. The same six communities will account for
almost 42% of the total employment in the City
(Table 3*). Note, however, that a
significant percentage of these jobs are filled by people commuting from
areas outside of the City.
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| Number of Motor Vehicles |
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Based on the 1990 Census and Department of Motor Vehicles reports, there
were 1,840,982 registered motor vehicles in the City of Los Angeles. The
communities of Wilshire (125,203), Canoga Park - Winnetka - Woodland
Hills (111,541), Hollywood (108,808), and Northeast Los Angeles
(108,388) had the highest number of motor vehicles. In the same year,
the communities of Central City (70%), Westlake (46%), Central City
North (38%), Southeast Los Angeles (32%) and Boyle Heights (28%) had the
highest proportion of households with no registered motor vehicle
(Table 4*).
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Daily and Peak Hour Vehicle Trips
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Peak periods generally extend from 6:00 a.m. to 9:00 a.m., and from 3:00
p.m. to 6:00 p.m. on weekdays. The remaining hours of the day are
considered "off-peak" periods. The single hour of most intense traffic
circulation occurs between 5:00 and 6:00 p.m. on weekdays. The City's
surface street network accommodates almost 42 million vehicle miles daily
2.
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Based on the Framework Travel Demand Forecasting model
3, which was constructed to
represent traffic conditions for the year 1990 on freeways, Major
Highways, and Secondary Highways, it is estimated that commuters traveled
5.3 million vehicle miles in approximately 193,000 vehicle hours in the
evening peak hours. Average freeway speeds were 35 miles per hour
(m.p.h.) and average arterial speeds were 23 m.p.h. in the evening peak
hours. Approximately 40% of peak hour travel occurs in congested
conditions (level of service E or F).
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There are over 24 million trip ends generated in the City daily. This
accounts for over 40% of the County's daily trip ends and over 25% of the
regional total (Table 5*).
Almost 1.6 million vehicle trip ends occur during the PM peak hours. Of
the PM peak hour trip ends, about 27.5 % or 425,000 trips have the
opposite end of the trip outside the City. About one-fourth of the PM
Peak hour trips stay within the Community Plan Area from which it
originates. Over 47% of the PM peak hour trips end in other communities
within the City (Table 6*).
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In 1990, home-to-work trips comprised a relatively small percentage of
the total trip purposes conducted in Los Angeles throughout the day,
representing less than 20 percent of all daily person trips. During the
PM peak period, however, the work trip proportion increased and comprised
roughly one-third. Home-to-work trips during the AM peak period in 1990
constituted approximately one-half of all person trips. All trip types in
Los Angeles were conducted primarily by automobile in 1990, including 87
percent of all home-to-work trips and 97 percent of all other trips.
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According to the 1990 Nationwide Personal Transportation Survey, 52
percent of the trips conducted during the combined AM and PM peak periods
in Southern California in 1990 were generally for four non-work trip
purposes: family and personal business; school and church; shopping; and
social/recreational purposes. These same categories of trips made up 71
percent of the off-peak trip purposes and 68 percent of all daily travel.
Additionally, these trip purposes primarily were conducted by automobile.
For example, 93 percent of family and personal business trips; 89 percent
of all shopping trips; 82 percent of social and recreational trips; and
66 percent of school and church trips were conducted by automobile. The
automobile was used predominantly for all trips regardless of the trip
length and purpose.
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EXISTING TRANSPORTATION FACILITIES AND PROGRAMS
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| Highways and Freeways |
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The City has five general categories of roadway classifications: major
highway-Class I (126 ft. right-of-way), major highway-Class II (104 ft.
right-of-way), secondary highway (90 ft. right-of-way), collector (64 ft.
right-of-way) and local street (60 ft. right-of-way). Collector and local
streets in designated Hillside Areas have modified standards as to width.
Major highways generally provide four to eight lanes of travel and have
access to intersecting freeways. Secondary highways typically have four
travel lanes, and collector streets provide two travel lanes, as do local
streets. A significant proportion of the streets in the City are not
fully dedicated and/or improved to the designated standard.
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The City of Los Angeles had a total of 6,493.2 street miles in 1994. The
majority of the City's street system or 4,288.3 street miles (66%) are
local streets. Almost 16% or 1,029.2 street miles are major highways and
5.98% or 388.5 street miles are secondary highways. Less than 1% of the
City's street network is unpaved (
Table 7*). In 1994, the City had a total of 181.425 miles or
1,454.777 lane miles of freeways within its boundaries. This accounts for
over 33% of the total freeway miles in Los Angeles County
(Table 8*).
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High Occupancy Vehicle Lanes
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High occupancy vehicle (HOV) lanes encourage carpooling by enabling
carpoolers to travel in separate lanes, usually at higher speeds than
mixed-flow traffic. The California Department of Transportation
(Caltrans) is responsible for development of HOV facilities on freeways.
Cities are responsible for local HOV lanes. The City is currently
investigating the feasibility of establishing HOV lanes in selected
locations. Caltrans has constructed a transitway along the Harbor Freeway
(I-110) as well as HOV lanes on several other freeways, in addition to
maintaining HOV facilities within or near the City of Los
Angeles.
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| Park-N-Ride Lots |
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Park-N-Ride lots offer a convenient way for commuters to congregate in a
common area in order to carpool/vanpool or to use transit, typically
helping commuters with longer distance journeys to and from work. As of
1995, nearly 150 Park-N-Ride lots were operating within Los Angeles
County (30 within City boundaries). Most of these were managed and/or
owned by Caltrans, LACMTA or Metrolink. LADOT participated in the
operation of seven lots, offering commuter bus service from these lots to
Downtown Los Angeles.
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| Bikeways |
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The City first adopted a Bicycle Plan in 1977. As of 1995 nearly 90
miles of Class II (bike lane) facilities have been striped on City
streets, and there are approximately 45 miles of Class I (bike path)
facilities constructed - primarily along the beach, flood channels and
in City parks. There are also approximately 160 miles of Class III
(shared lane) facilities indicated on City streets. Despite this
significant mileage, a viable network of interconnected bikeways does
not yet exist in the City, with the exception of certain areas of the
San Fernando Valley.
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Transportation System Management (TSM)
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Section 164.1 of the California Streets and Highways Code defines
Transportation System Management (TSM) projects as "those projects
designed to increase the number of person-trips which can be carried on
the roadway system in a peak period without significantly increasing the
designed capacity of the highway system when measured by the number of
vehicle trips and without increasing the number of through traffic
lanes." TSM is an engineering tool which utilizes a combination of
traffic engineering measures and traffic operation control procedures to
provide quick relief from traffic congestion. The TSM strategy can also
be described as the efficient application of construction, operational,
and institutional actions which produce the most productive and
cost-effective use of existing transportation facilities and services.
The basic components of TSM strategies can be categorized as supply-side
actions which focus on better use of the existing infrastructure.
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The City's Automated Traffic Surveillance and Control (ATSAC) system and
Smart corridors are examples of its TSM efforts. In 1984 ATSAC was
installed in a four square mile area around the Los Angeles Coliseum and
tested during the Summer Olympics. The initial installation consisted of
118 signalized intersections and 396 detectors. Currently, the system is
now operational in the Westside, Central City and portions of the San
Fernando Valley. Approximately 2,000 out of the 4,000 scheduled
intersections have ATSAC installations. Similarly, the City's Smart
Corridor project operates within the boundaries of Western Avenue, Soto
Street, Adams Boulevard and Olympic Boulevard, including the Santa Monica
Freeway (Fwy 10).
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Transportation Demand Management (TDM)
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Transportation Demand Management (TDM) strategies are intended to reduce
the demand for highway facilities by changing individual travel behavior.
TDM provides alternatives to single occupant vehicles (SOVs) and peak
hour travel, with the goal of increasing average vehicle occupancy /
ridership vehicle substitution and/or trip elimination.
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In 1988, the Southern California Air Quality Management District (AQMD)
instituted Regulation XV that required enterprises with 100 or more
employees to adopt trip reduction programs. The regulation required
each employer to institute a trip reduction program that would achieve an
Average Vehicle Ridership (AVR) of 1.75 in Downtown Los Angeles, 1.5 in
the remainder of urbanized areas, and 1.3 in rural parts of the AQMD. AVR
measures the extent to which commuters use public transit, car pooling,
and other multiple-occupant-vehicle modes of transportation. The 1990 AVR
for the City of Los Angeles was 1.314.
Regulation XV was repealed in December, 1995. AQMD Rule 2202
which replaced Regulation XV provides options for employers to either
continue trip reduction programs or reduce mobile source emissions
through other strategies. As of January 1, 1997 Rule 2202 applies only to
enterprises with 250 or more employees.
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Since 1985, the City has adopted several Transportation Specific Plans,
including the Coastal Transportation Corridor, Central City West, Ventura
/ Cahuenga Corridor , and Westwood / West Los Angeles specific plans.
These plans emphasize the role of TDM for reducing traffic. In addition
to trip reduction programs, these plans include such provisions as a
phased reduction of parking requirements, provisions for remote parking
and Park-N-Ride lots, and trip fee credits for measurable implementation
of TDM actions.
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The City Department of Transportation (LADOT) "Traffic Study Policies and
Procedures" manual, adopted in 1993, contains a substantial section on
TDM. This section is designed to encourage developers to create TDM
programs that help reduce the number of trips generated by new
development.
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In 1993, as part of the City's conformance with the Los Angeles County
Congestion Management Program (CMP), the City adopted a TDM ordinance.
In addition to discouraging single occupancy vehicle trips, the TDM
ordinance requires developers to make buildings more conducive to use by
pedestrians and transit riders as well as by carpoolers/vanpoolers. It
requires strategies such as information kiosks, minimum garage vertical
clearances for vanpools, bicycle parking, transit accessible building
entrances and safe sidewalks. Specific requirements depend on the size of
each development.
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| TRANSIT |
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Bus Transit and Paratransit
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The transit system is used more often in the City of Los Angeles than in
the rest of the region. While the City generates about 25% of regional
trips, it accounts for 60% of the region's transit trips. On a daily
basis, about 4.6% of all person trips in the City are taken on transit
while the rest of the region's transit usage is just over 1%. For home to
work trips, 13% of the City's person trips are by transit while only 3%
of the person trips outside the City are by transit. During the PM peak
hour, 9.4% of person trips in the City are by transit while only 3.4% are
by transit in the rest of Los Angeles County. Compared to the region, the
rate of transit usage in the City is over two times higher than the
region as a whole and almost three times higher than the rest of Los
Angeles County (Table 9*).
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Demographic Measures of Transit Need
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Los Angeles is a demographically diverse city. Its residents have a broad
spectrum of travel needs. Some communities in the City have higher
propensities to use transit and a greater need for transit services than
others. A number of measures of transit need have been used in the past,
based primarily on demographic data from the 1990 U. S. Census. The
following seven demographic indicators were used to measure transit need
in this citywide analysis:
- Income Stratification:
- Percent of households below the poverty income level
- Automobile Availability:
- A combined measure of motor vehicles per household and
percentage of households with no motor vehicles
- Disabled Persons:
- Percent of households with members reporting a disability
- Senior Population:
- Percent of households with members over the age of 65
- Youth:
- Percent of households with members under the age of 16 (minimum
driving age)
- Workers Using Transit:
- Percent of workers reporting use of public transit
- Unemployment:
- Percent of unemployed workers in the labor force in 1990.
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Table 10* shows how the 35 Community
Plan Areas (CPAs) compare relative to these transit need measures. Not
all of the mentioned demographic measures are displayed. The ranking
presented in the table, however, is based on the complete analysis of all
the identified demographic measures. Based on an unweighted average of
these measures, the following CPAs have the greatest levels of transit
dependency in the City:
- Central City
- Southeast Los Angeles
- South Central Los Angeles
- West Adams - Baldwin Hills
- Westlake
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The five CPAs with the most need are located in the central and southern
portions of the City. The next five CPAs in rank order of transit
dependency are also clustered around Downtown Los Angeles. The planning
areas with the lowest composite ranking for transit dependency are
Brentwood - Pacific Palisades, Chatsworth - Porter Ranch and Bel Air -
Beverly Crest.
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| Transit Services |
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There were 119 express or regional bus routes, and two bus pools, in
existence in 1992. The MTA is the major transit operator, with
approximately 200 bus routes of all types in the study area
5. Approximately 50 routes in the MTA
system are express or hybrid local-express routes connecting regional
travel markets. In addition, the Los Angeles Department of Transportation
(LADOT) operates
eight commuter express lines. Foothill Transit also provides regional
express services from northeastern Los Angeles County into the Downtown
Los Angeles area. Other operators providing transit services include the
Orange County Transportation Authority, Riverside Transit Agency,
Omnitrans, Santa Clarita Transit, Gardena Transit, Torrance Transit and
Santa Monica Municipal Bus Lines. Other municipal operators such as
Culver City operate local community routes in the study area, but have no
routes of regional significance to the 18 regional travel corridors.
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The transit person-carrying capacity along major regional travel
corridors in 1992, for AM Peak-Period, is presented in
Table 11*. The sum of seated
and standee capacities of every bus and rail route serving a specific
corridor is the transit capacity of a corridor. For every route, the
capacity is the product of number of trips in the AM peak hours, number
of seats in the bus or train and the load-ratio. The Wilshire Corridor
has maximum existing transit capacity with over 7,000 passengers per hour
carrying capacity provided by eleven major MTA operated bus routes. The
Inner City Crenshaw Corridor between South Los Angeles and Mid-Wilshire /
Hollywood has an existing transit capacity of over 3,000 passengers
during the peak-hour provided by seven bus routes operated by MTA. The
corridor between Southeast Los Angeles and Downtown has an existing peak
hour capacity of over 2,700 passengers. Several other corridors have
existing capacities of over 2,000 persons per hour. The Santa Monica
Freeway Corridor has an existing transit capacity of approximately 2,600
passengers during the peak hours along 12 bus routes. Service on the
Santa Monica Freeway is provided by MTA, LADOT and Santa Monica Municipal
Bus Lines. Existing transit service on the San Bernardino Freeway is
provided predominantly by Foothill Transit as well as by MTA and
RTA/Omnitrans. A capacity of approximately 2,200 passengers is available
in the San Bernardino Freeway Corridor. The Santa Clarita / Downtown Los
Angeles / I-5 Freeway Corridor is also a major transit corridor in the
study area. A capacity of approximately 2,100 passengers is available on
this corridor on 11 routes, with a majority of routes being operated by
MTA.
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Although most of the transit system is operated by MTA, the City of Los
Angeles has become a major transit operator, serving over 3 million
boardings annually in 1995. Originally intended to accommodate the needs
of the elderly and handicapped, these City-provided services are being
utilized by an increasing number of residents. The LADOT Bureau of
Transit Programs operates a Downtown shuttle program known as the
Downtown Area Short Hop (DASH) system. DASH-type service is also provided
within several other communities, including Watts, Wilmington, Sherman
Oaks, Fairfax, Hollywood, Leimert/Slauson, Pueblo del Rio, Park La Brea,
Warner Center and Van Nuys/Studio City on more than a dozen routes. LADOT
utilizes a substantial number of alternative fuel vehicles (AFV) in its
fleet - including compressed natural gas, liquefied natural gas, propane,
and electric / cogenerator system.
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LADOT has been a pioneer in alternative transportation technologies for
transit, developing prototype products in conjunction with the private
sector for various services such as smart shuttles. Several other forms
of transit that are supported by LADOT are a rubber-tired trolley system,
Cityride (a dial-a-ride service), taxicab support programs, the Commuter
Express service, and a parking shuttle service in the beach community of
Venice during summer weekends. The Cityride program provides
transportation for seniors and individuals with disabilities throughout
the City of Los Angeles. It is supplemented by a multipurpose
center-based paratransit program managed by the City's Department of
Aging which also offers door-to-door service for the frail and elderly.
The City also sponsors many contract services through a series of grants
that amount to approximately $11 million annually.
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| Rail Transit |
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The public transit system also includes a system of rail lines.
LACMTA is responsible for
the planning, design and implementation of the Metro Rail system.
Metro
Rail lines include the Red Line, a subway running between the Union
Station complex and the intersection of Wilshire Boulevard and Western
Avenue. Another Red Line route runs through Hollywood along Vermont
Avenue and Hollywood Boulevard into the Cahuenga Pass extending into the
San Fernando Valley to the intersection of Lankershim Boulevard and
Chandler Boulevard in North Hollywood. This segment is programmed to be
fully operational in the year 2000. Phase I of the Metro Red Line
reported 1.96 million annual boardings for Fiscal Year 1992-1993 and has
increased to 5.05 million and 5.57 million boardings in Fiscal Years
1993-1994 and 1994-1995 respectively.
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The Metro Rail Blue Line, a light rail line, has been in operation since
1990. It connects Downtown Los Angeles with Downtown Long Beach. There is
a pedestrian connection between this line and the Metro Red Line at the
Seventh Street station. The Pasadena extension of the Blue Line is
anticipated for completion during the year 2003. The Long Beach Blue Line
reported 12.5 million annual boardings for Fiscal Year 1993-1994 and this
rose to 13.8 million boardings in Fiscal Year 1995-1996.
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The 20-mile Metro Rail Green Line is a light rail system operating in the
median of the Glenn Anderson Freeway (I-105) with a connection to the
Long Beach Blue Line. It began operation in 1995 and had a total of 3.75
million annual boardings for Fiscal Year 1995-1996.
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By March 1997, it was estimated by
LACMTA that the total
ridership on the combined Red, Blue and Green lines had exceeded
102,000 daily boardings.
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Metrolink opened in October 1992. It is a commuter rail service geared
towards home-to-work trips into Downtown Los Angeles from outlying
communities such as Pomona, Moorpark, Santa Clarita, Riverside, Orange
County and Oceanside. In Fiscal Year 1992- 1993, Metrolink trains served
a total of almost 950,000 passengers. The total annual boardings on all
Metrolink lines increased to 5.4 million in Fiscal Year 1995-1996. Of
this number, an estimated 3.7 million passengers traveled to Downtown Los
Angeles. The list of planned, funded and approved transit projects are
shown in Table 12*.
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GOODS MOVEMENT
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| The Alameda Corridor |
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The
Alameda Corridor project will dramatically improve railroad and
highway service to the Ports of Los Angeles and Long Beach, the largest
port complex in the United States. The project is designed to facilitate
port access while mitigating potentially adverse impacts of port growth,
such as traffic congestion, delays at rail/highway grade crossings, train
noise in residential areas, and air pollution. The Corridor is
approximately 20 miles long running between railyards southeast of
between Downtown Los Angeles and the ports, and is designed to facilitate
port access, consolidate 90 miles of rail lines, and eliminate 200 at
grade crossings while mitigating potentially adverse impacts of port
growth. It will also provide a critical link in the proposed Southwest
Passage "land bridge" between the Los Angeles/Long Beach ports and ports
along the Gulf of Mexico.
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North of State Route 91, the railroad corridor will be below grade i.e.,
in a trench about 33 feet deep and 47 feet wide. East-west streets will
bridge across this trench. South of Route 91 the tracks will be at-grade
and east-west streets will be elevated above both the tracks and Alameda
Street. The project will be designed to accommodate future
electrification of the rail line.
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The highway component involves widening Alameda Street south of Route 91
from four to six lanes. New pavement, signals and left-turn pockets will
be installed along the segment of Alameda Street between Route 91 and
I-10.
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The Alameda Corridor is scheduled to be operational in the year 2002.
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TRANSPORTATION SYSTEM ANALYSIS
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| Travel Demand Model |
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The travel demand forecast model utilized by
LADOT and the City
Planning Department simulates Citywide PM peak hour traffic volumes to
help evaluate transportation conditions, impacts and policies. The model,
constructed on EMME/2, is based on the
SCAG 1990 regional transportation model. Technical and policy details
were coordinated with SCAG to insure consistency between the models and
forecasts. The population, employment, housing (single and multi family
dwelling units) and number of cars data presented in the preceding pages
are the inputs to the transportation model.
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As presented in this section of the Transportation Element, the data is
a comparison by Community Plan Area (CPA) between what existed in 1990
and the Citywide General Plan Framework socio-economic forecast. The CPA
aggregation represents the best comparative summary of the effects of the
CGPF and illustrates the source of these impacts. The CPA level was also
chosen because it provides a locational characteristic with which
residents of the City can identify. The tables presented in this chapter
indicate the impacts of projected growth, within and outside a Community
Plan Area in summary fashion.
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| Impacts of Growth |
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Between 1990 and 2010, the population in Los Angeles is projected to grow
by 23.56 percent, housing by 20.47 percent, and employment by 20.47
percent. The projected employment growth is double the anticipated growth
under normal market conditions, and represents an aggressive employment
development effort on the part of the City. This growth, combined with
regional growth outside Los Angeles, would result in a 37.82 percent
increase in vehicle travel (Table
13*).
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Impacts on congestion levels were analyzed for each Community Plan Area.
Table 14* shows the 35
Community Plan Areas in Los Angeles. Average freeway speeds would be
reduced by as much as one-half. Speeds on arterial streets will also
be affected to a lesser extent. Although traffic congestion is expected
to increase throughout the City, the level of congestion will not be
evenly distributed. Due to substantial projected population growth in the
North County, the area of the City with the greatest freeway congestion
anticipated in 2010 is in the Community Plan Area of Sylmar. Roughly
one-third of all congested vehicle hours Citywide would occur in this one
area in 2010. The Granada Hills area, just west of Sylmar, would
experience the greatest arterial congestion due to commuters looking for
alternative routes on surface streets as freeway speeds decrease. As a
consequence, neighborhood and commercial streets will be impacted by the
anticipated freeway congestion. The average speeds depicted in Table 14
reflect projections based on the Framework travel demand model and do
not take into account implementation of the General Plan Framework
Transportation Improvement and Mitigation Program (TIMP).
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Most of the increase in travel times would occur whether or not the City
continues to grow. Regional growth outside the City, especially in the
North County area, will contribute significantly to the City's traffic
problems. The 1994 SCAG Regional Comprehensive Plan and Guide indicates
that North Los Angeles County will grow by nearly 680,000 people and
170,000 jobs between 1990 and 2010. This growth will result in a
substantial amount of economic interaction between North County and the
City of Los Angeles. The demand for travel between the two areas will be
much greater, resulting in congestion of the freeway corridors and
adjacent City streets.
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| Congested Corridors |
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Based on CGPF analysis of year 2010 population and employment
projections, ten corridors were identified as becoming the most heavily
congested areas in the City of Los Angeles. The Congested Corridor
Progress Report (CCPR) completed by the LACMTA in January, 1994
identified eleven highly congested corridors in the County of Los
Angeles, most of which were cited in the CGPF analysis. While the CCPR
analyzes corridors throughout several jurisdictions within the County,
major portions of seven of these overlapping corridors fall within City
of Los Angeles boundaries.
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The following regional corridors have been identified by LADOT as being
among the most heavily congested areas in Los Angeles; they are listed
along with three additional corridors identified in the CCPR:
- Corridor 1:
- Freeway 5 / North County Gateway
- Corridor 2:
- Freeway 101 / Cahuenga Pass
- Corridor 3:
- Freeway 405 / Sepulveda Pass
- Corridor 4:
- Pacific Coast Highway / Pacific Palisades
- Corridor 5:
- Freeway 210 / Newhall Pass
- Corridor 6:
- Laurel Canyon Blvd. (Sunset Blvd. to Ventura Blvd.)
- Corridor 7:
- Glendale Boulevard (Freeway 101 to Freeway 2)
- Corridor 8:
- Beverly Glen Boulevard (Wilshire Blvd. to Ventura Blvd.)
- Corridor 9:
- Alameda Corridor
- Corridor 10:
- Wilshire Boulevard (Freeway 110 to Centinela Ave.)
- Corridor 11:
- Freeways 134/101 (San Fernando Valley, east-west)
- Corridor 12:
- Freeway 110 (Freeway 101 to Freeway 405)
- Corridor 13:
- Santa Monica Freeway (Freeway 110 to Freeway 405)
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FEDERAL AND STATE MANDATES
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Based on the region's non-compliance with air quality regulations, the
Federal and State governments have issued certain mandates to be
achieved. These mandates require the region and the air basin to reach:
- A 25 percent increase in the Average Vehicle Ridership (AVR) for
work commute trips for employers of 100 or more (Source: Section
182 (d)(1)(B) of Title I of Federal Clean Air Act);
- An average commute ridership of 1.5 persons per vehicle by 1999
(Sources: California Clean Air Act; California Health and Safety
Code [40920(a) (2), 40920 (c), 40920.5 (a)]; and
- No net growth in vehicle source emissions after 1997 (Sources:
California Clean Air Act; California Health and Safety Code
[40920(a) (2), 40920 (c)
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These mandates created by state and federal air quality legislation are
subject to periodic review and revision, and are intended to help to
reduce air pollution. In order for the region/air basin to meet these
mandated thresholds, the City would need to achieve much higher transit
ridership. For example, the City would likely need to achieve a
peak-hour transit mode split (including rail, bus, shuttles, and other
services) of 15.9 percent in order for the region to meet these
mandates. The City would also likely need to reduce peak hour vehicle
trips by 13 percent beyond what is expected from current trends and
policies.
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Footnotes
- Citywide General Plan Framework, "Transportation
Issues and Opportunities" Technical Memorandum, July 22, 1993.
- California Department of Transportation,
Transportation System Information Program, Office of Travel
Forecasting &Analysis, Highway Inventory & Performance
Branch-Report CON001-6D -1994.
- A more informative discussion of the Citywide
General Plan Framework model follows later in this chapter.
Technical details of the model are described in Citywide General
Plan Framework Modeling and Data Consistency Analysis- Report III.21,
April 14, 1994.
- AVR is calculated by dividing the number of
employees who arrive at a site between 6 a.m. and 10 a.m. by the
number of vehicles arriving and parking at the same site within the
same time period. A number greater than 1.00 indicates that people
are arriving at the worksite by alternative modes (e.g., transit,
car pooling, vanpooling, bicycling, walking).
- The Study Area is described in Technical
Memorandum II.52-Existing Transit Services and Patronage, a
background report prepared for the Citywide General Plan
Framework. The study area covers the whole SCAG region and focused
on 18 identified key regional travel corridors. In order to
analyze the transit usage between various areas in the City of Los
Angeles and its vicinity, the study area is subdivided into 45
Transit Analysis Areas (TAAs). The TAAs have been designed to
generally follow the Community Planning Area (CPA) boundaries in
the City of Los Angeles and RSA boundaries in other areas of Los
Angeles County. Orange County is divided into two corridor
oriented zones whereas Ventura, Riverside and San Bernardino were
aggregated to County level. The Existing Transit Services and
Patronage report analyzes existing transit facilities and capacity
in the region as it relates to the said regional travel corridors.
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