Q UANTIFYING P ARK & R IDE D EMAND U SING LEHD OD D ATA AND C ASE S TUDY A NALYSIS J ONATHAN B ROOKS A SSOCIATE T RANSPORTATION R ESEARCHER T RANSIT M OBILITY P ROGRAM T EXAS A&M T RANSPORTATION I NSTITUTE T HE T EXAS A&M U NIVERSITY S YSTEM GIS IN T RANSIT C ONFERENCE 2013 O CTOBER 17, 2013

The Question 2 New ? FBC Park & Ride Houston CBD

Park & Ride Market-Sheds Limited by distance Facilities close together may reduce each others ridership generation Rider willingness to backtrack limited Market-shed most often parabolic shape 50% of riders typically live within 2.5 miles 3

4 Source: Final Report, New York City Park & Ride Study, January 2012

Source: Park-and-Ride Planning and Design Guidelines, Spillar (1997) 5

Demand Estimation Model Simplified Steps Identify case study sites, obtain ridership data Obtain OD worker flow volumes from LEHD Calculate mode capture rates Apply capture rates to potential new sites 6

Houston Metro P&Rs: Spring Kingwood Townsen Bay Area Grand Parkway Kingsland Cypress Northwest Station FBC Transit P&Rs: AMC Movie Theater University of Houston 5 miles 10 miles 20 miles 27 mi 28 mi 21 mi 20 mi 27 mi 25 mi 24 mi 22 mi 24 mi 7 CBD Location of Case Study Facilities

Observations about METRO Sites 2.5 mi radius circle covered about 37% of riders (2009 & 2012 license plate data) Parabola can describe general distribution Findings generally coincided with literature 8

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Summary of Case Study Average distance to CBD: 24.3 miles Average peak weekday CBD bound riders: 726 Average # of inbound bus trips: 25 Typical headway in peak of peak: 3 minutes 10

Longitudinal Employer-Household Dynamics (LEHD), US Census Annual data Links home to work Census Blocks Work data, not exactly travel data OnTheMap is the online tool OnTheMap 11

Paired Analysis for OD Flows Selected 2.5 mile radius around P&R Selected 1 mile radius to encompass CBD Tabulated OD volume between two sites, by income bracket $1,250 per month or less $1,251 to $3,333 per month More than $3,333 per month 12

Step 1. Select Analysis Sites mile radius circle around facility used to identify home Census Blocks 1 mile radius circle around CBD used to identify work Census Block

Step 2. Analysis Settings 14

Step 3. Analyze, Record Findings 15

Case Study Findings Based on analysis of the 2.5 mile radius around case study METRO park & rides: Average weekday CBD bound riders: 767 Average LEHD worker flow to CBD: 1,579 Park & ride modal capture ratio: 18% Lowest three sites 11% Highest three sites 28% 16

Potential New Park & Ride CBD Current FBC Facilities: AMC Movie Theater University of Houston 5 miles 10 miles 20 miles 22 mi 24 mi

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Estimated Ridership at New Site 19

20 Ridership Estimate for Varying Service Options

Questions? Jonathan Brooks 21