6 toll tunnel and rail tunnel

Sepulveda Pass Corridor Systems Planning Study

Drawing C6-01

101

101

METROLINK-ANTELOPE VALLEY LINE

METROLINK-VENTURA LINE

101

101

ANTNTELOPEOPE VALLEY LINE

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LINE

YLI

METROLINK-VENTURA LINE

-VENTURA

E ROE

A

OLIN -ANTAN

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Van Nuys

Woodland Hills

NorthHollywood

WestHollywood

BeverlyHills

CenturyCity

SantaMonica

CulverCity

Los Angeles

Los AngelesInternational Airport

MarinaDel Rey

Inglewood

El Segundo

UniversalCity

Burbank

Northridge

GranadaHills

SanFernando

Canoga Park

Van Nuys

Woodland Hills

NorthHollywood

WestHollywood

BeverlyHills

CenturyCity

SantaMonica

CulverCity

Los Angeles

Los AngelesInternational Airport

MarinaDel Rey

Inglewood

El Segundo

UniversalCity

Burbank

Northridge

GranadaHills

SanFernando

Canoga Park

PACIFICOCEAN

Legend

In-Line Stations

Highway Tunnel

Tunnel Portals

Private Shuttle Tunnel

I-405

Access Point

Directional DAR’s

Century Blvd

Culve

r Blvd

Jefferson Blvd

Venice Blvd

Santa Monica BlvdWilshire Blvd

Olympic Blvd

Sunset Blvd

Pico Blvd

Roscoe Blvd

Nordhoff St

Sherman Wy

Plummer St

Devonshire St

Rinaldi St

Westw

ood Blvd

I-405

Oxnard St

Magnolia Blvd

Ventura Blvd

Van Nuys B

lvd

Sepulveda B

lvd

San Fernando Blvd

Overland Ave

Sepulveda Blvd

Sepulveda B

lvd

Miles

0 1 2 4

Toll Tunnel and Rail TunnelC

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PT

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Two-Lane Highway Tunne Configuration(see Exhibit C4-02)

One-Lane Highway Tunnel Configuration

Rail Shuttle Tunnel (see Exhibit C5-02/TunnelSection)

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Highway Tunnel Portal at Roscoe St./Parthenia St. (see Exhibit C6-04)

Highway Tunnel Portal at US-101 (see Exhibit C4-03)

Highway Tunnel Portal at La Grange Ave. (see Exhibit C6-05)

Private Shuttle Tunnel Portal at Crenshaw Blvd. /LAX(see Exhibit C6-03)

Private Shuttle Tunnel Portal at Van Nuys Metrolink Station(see Exhibit C6-02)

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Highway Tunnel Portal at Century Blvd. /LAX(see Exhibit C6-06)

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SepulvedaEngineeri

Append

a Pass Corridong Issues Rep

dix 2: Highe

or Systems Plport 

er Speed B

anning Study

Buses 

y 

Many Metro buses currently in revenue service are not able to maintain adequate revenue service speed over the soon to open High Occupancy Vehicle (HOV) lanes over the Sepulveda Pass. These existing buses could also not maintain adequate revenue service speed over the Sepulveda Pass if the HOV lanes were at some point converted to Express Lanes. Therefore any Metro bus service operated in these lanes, now or in the future, requires exploration of higher power buses that would be able to sustain higher speeds through this corridor. Metro can explore options for higher horsepower configurations for existing transit vehicles that Metro could use over the Sepulveda Pass or in other HOV/Express Lane locations. Ideally these higher power buses should be able sustain highway speeds (50 mph+) even at 2 to 5 percent grades. Metro staff is aware of alternate propulsion system configurations that may be better suited to operating on grades than those currently used in Metro’s bus fleet. The current predominant Metro bus engine is the Cummins-Westport ISLG 8.9 liter engine. For standard buses, this engine usually operates at 280 horsepower and 900 pounds of torque. This engine has an alternate configuration available in a 320 horsepower configuration with 1,000 pounds of torque, and this higher horsepower is estimated to allow buses to maintain speeds over the Sepulveda Pass in the 45 to 55+ mile per hour range. Cummins-Westport and Doosan both now offer larger displacement 11- 12 liter CNG engines that could potentially allow even higher speeds (55-65 mph+) over the Sepulveda Pass. Additional engineering work is still needed to determine whether these larger engines could feasibly be retrofitted into current transit bus configurations.

Date November 7, 2012

To Roger Martin, David Mieger

From Steve Brye

Subject Higher Power Bus for the Sepulveda Pass