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Bob Hope Airport MultiModal Ground Access Planning Study (MGAPS) Travel Forecasting Approach SCAG Model Task Force Meeting July 24, 2013 1

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Bob Hope Airport Multi‐Modal Ground Access Planning Study 

(MGAPS) 

Travel Forecasting Approach

SCAG Model Task Force MeetingJuly 24, 2013

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Overview

• Project Description• Blended Model Process• Validation Approach

SCAG Model Task Force Meeting

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Project DescriptionTwo separate, but cooperating, planning studies led by the Burbank‐Glendale‐Pasadena Airport Authority: 

• Multimodal Ground Access Planning Study (MGAPS)–STV is lead consultant–AECOM is responsible for travel demand modeling

• Land Use Study –AECOM is lead consultant

SCAG Model Task Force Meeting

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Project DescriptionThe goal of the MGAPS is to develop ground transportation improvements that will allow the Airport to serve as a multi‐modal regional transportation hub.  

The Land Use Study is intended to identify Transit Oriented Development (TOD) opportunities in the Airport area to take advantage of the Airport’s transportation connections. 

SCAG Model Task Force Meeting

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Study Areas

SCAG Model Task Force Meeting

5Source: STV

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Existing Rail Service

SCAG Model Task Force Meeting

6Source: STV

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Potential Improvement

Existing Rail Service

SCAG Model Task Force Meeting

7Source: STV

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Blended Model ProcessThe study involves the impact of transit improvements on localized 

traffic conditions, a portion of which is related to air travel demand.→ No one model is sufficient

SCAG Model Task Force Meeting

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Blended Model Process

SCAG Model Task Force Meeting

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Model  Use in this Project 

Metro Travel Demand Model  Changes in transit ridership resulting from regional transit improvements 

Reductions in automobile trips entering and exiting study area resulting from regional transit or highway improvements 

City of Burbank Travel Demand Forecasting Model 

Changes in local travel patterns resulting from changes in locations of land uses 

Changes in local trip generation resulting from transit oriented development  

Air Passenger Model   Based on Metro’s Air Passenger Model (LAXAPM)  Calibrated to markets and conditions at BUR  Changes in passenger mode of access to airport 

resulting from transit improvements 

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Metro Models• Tranplan model with detailed transit network in and around Los 

Angeles County and has been vetted by FTA for use in forecasts supporting Section 5309 New Starts applications.

• Air Passenger Model – Runs in parallel with the “regular” Metro model, was originally 

developed for use in the Crenshaw and South Bay Green Line projects 

– Person Trip tables developed from the SCAG RADAM model were originally used to represent person travel to and from LAX 

– Originally calibrated for LAX using the 2006 LAWA Air Passenger survey, by trip purpose (Resident Business, Resident Non‐Business, Visitor Business, Visitor Non‐Business)

– Will be calibrated to market and conditions at BUR based on extensive data collection (LAX air passenger trips will not be modeled in this project)

SCAG Model Task Force Meeting

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Burbank Model• Developed by Fehr & Peers based on RTP 2008 model• Includes the City of Burbank and neighboring areas that have high 

levels of interaction with Burbank with detailed zone structure in and around BUR 

• Uses a land use based trip generation module, a gravity trip distribution module, and a capacity constrained equilibrium traffic assignment process

• Synthetic generation and distribution of auto trips at BUR will be replaced by a survey‐based trip table 

• No transit component

SCAG Model Task Force Meeting

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Burbank Model

SCAG Model Task Force Meeting

12Source: Fehr & Peers

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Blended Model Process• The primary interface between 

the two models (Metro with APM and City of Burbank) will be the incremental auto trips coming from the Metro mode choice model. 

• A reduction or increase in auto travel would then be applied to the City model just prior to highway assignment. 

• This reduction or increase will reflect the net effect of changes caused both by land use changes and by mode shifts resulting from transit improvements.

SCAG Model Task Force Meeting

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Detailed Area Highway 

Assignments/Link Volumes

City of Burbank TDF 

Model

Air Passenger Model

Metro Model

Transit Assignments

Change in Auto Trips

Enplane‐ments,  Ground Access by Mode

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Blended Model Process• Metro model zones outside 

the study area must be aggregated, and trips to and from them must be matched to the external zones of the City model.

• Metro zones outside the City model area have been assigned to 16 external zones of the City model, based on the routes that trips from those zones would take to reach the Airport. 

SCAG Model Task Force Meeting

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Source: Fehr & Peers

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Blended Model Process

SCAG Model Task Force Meeting

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Validation Approach• Validate Burbank and Metro models to study area conditions• Calibrate Air Passenger Model to BUR travel markets and modes 

of arrival

SCAG Model Task Force Meeting

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Burbank Model Validation• The City of Burbank model was 

validated with 2010 traffic volumes counts along 10 screenlines

• Additional screenline between BUR and I‐5:– Hollywood Way between San 

Fernando Boulevard and Tulare Avenue

– Ontario Street between Floyd Street and Winona Avenue

– Naomi Street between Winona Avenue and Thornton Avenue

– Buena Vista Street San Fernando Boulevard and Thornton Avenue

– Winona Avenue between Ontario Street and Naomi Street 

– Thornton Avenue between Buena Vista Street and Lincoln Street

SCAG Model Task Force Meeting

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Metro Model Validation• Route level validation• Metro routes 94, 165, 222, and 794• Burbank Bus routes 2 (Empire to Downtown) and 3 (NoHo to 

Empire)• Metrolink/Amtrak trains 

SCAG Model Task Force Meeting

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Air Passenger Model Calibration/Validation

Trip Tables by purpose developed using 2012 air passenger survey data, applied to July 2010 air passenger volumes (peak month prior to cessation of American Airlines service)

SCAG Model Task Force Meeting

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Air Passenger Model Calibration/Validation

Calibration target values from 2012 BUR air passenger survey

SCAG Model Task Force Meeting

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Next Steps• Model blending procedures complete• APM calibration nearly complete• Calculate updated BUR trip generation and complete highway 

screenline validation• Development of No Build and test forecasts

SCAG Model Task Force Meeting

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Questions?

SCAG Model Task Force Meeting

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