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Stratified Transit Market Segmentation . Multiple ways to Walk to Transit…. Multiple Transit Modes to Walk to. TRB Transportation Planning Applications Conference . Dan Tempesta. May 8, 2013. Marty Milkovits. Presentation Overview. Typical Market Segmentation

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stratified transit market segmentation

Stratified Transit Market Segmentation

Multiple ways to Walk to Transit…. Multiple Transit Modes to Walk to

TRB Transportation Planning Applications Conference

Dan Tempesta

May 8, 2013

Marty Milkovits

presentation overview
Presentation Overview
  • Typical Market Segmentation
  • Shortcomings of Typical Market Segmentation
  • Stratified Market Segmentation
typical market segmentation
Typical Market Segmentation
  • Available Mode Choice Options
    • DA: Drive Alone,
    • SR: Shared Ride,
    • WB: Walk to Bus,
    • WP: Walk to Premium,
    • DB: Drive to Bus,
    • DP: Drive to Premium, and
    • NM: Non-motorized Modes (Walk and Bike)
  • Options Defined by Access Mode and Transit Mode
typical market segmentation1
Typical Market Segmentation
  • Mode Accessibility
    • DA: Drive Alone – Accessible to All TAZ
    • SR: Shared Ride – Accessible to All TAZ
    • WB: Walk to Bus – Accessible to TAZ with Transit
    • WP: Walk to Premium – Accessible to TAZ with Transit
    • DB: Drive to Bus – Accessible to All TAZ
    • DP: Drive to Premium – Accessible to All TAZ
typical market segmentation2
Typical Market Segmentation
  • Availability/Accessibility
  • Accessibility – Zone Based
  • Availability – Zone Pair Based
shortcomings
Shortcomings
  • Consider a TAZ with 2 transit stops

TAZ

  • 46% of the TAZ is walk accessible
  • 54% of the TAZ is drive to transit accessible
shortcomings1
Shortcomings
  • Now add a new rail station

TAZ

  • 66% of the TAZ is walk accessible
  • 34% of the TAZ is drive to transit accessible
why is this a shortcoming
Why is this a Shortcoming?
  • The model will give 66% of the TAZ walk to transit accessibility
  • This overstates the accessibility of BOTH bus and rail

TAZ

stratified transit market
Stratified Transit Market
  • Need Mode Specific Transit Buffers
  • Stratified Markets
    • Bus Accessible (Blue)
    • Rail Accessible (Red)
    • Bus & Rail Accessible (overlap), and
    • Auto Only Accessible (No Coverage)

TAZ

implementation
Implementation
  • The Devil is in the Details
stratified transit market1
Stratified Transit Market
  • The Paths Matter
  • “Bus” Trips are transit trips that do not use Rail at all during their trip
  • “Rail” Trips use rail at some point during their trip
stratified transit market2
Stratified Transit Market
  • Walk to Rail Restrictions

Bus/Rail indicates that no restriction is necessary and N/A indicates that there would not be a path available for this option by definition

stratified transit market3
Stratified Transit Market
  • Drive to Rail Restrictions

Bus/Rail indicates that no restriction is necessary and N/A indicates that there would not be a path available for this option by definition

stratified transit market4
Stratified Transit Market

Production

Attraction

stratified transit market5
Stratified Transit Market

Production

Attraction

stratified transit market7
Stratified Transit Market
  • Combine Market Specific Paths with Market Shares
conclusions
Conclusions
  • Stratifying the Transit Market will remove artificially high walk Accessibilities
  • Implementation Requires
    • Mode Specific Buffers
    • Path Restrictions