1. El Paso–Juarez Border Integration Salvador González-Ayala El Paso MPO / IMIP / ICRC

2. Motivation: Conventional TDM approach treats POEs as “simple” external stations Yet, POEs usually handle more travel than inland access facilities Historical cooperation MPO-IMIP on Regional Modeling El Paso-Juarez Border integration

3. Mode choice on POEs tends to be highly sensitive to inspection delay POE mode share Motivation: Conventional TDM approach treats POEs as “simple” external stations Yet, POEs usually handle more travel than inland access facilities Historical cooperation MPO-IMIP on Regional Modeling El Paso-Juarez Border integration

4. …these special conditions suggest more careful modeling of POEs Mode choice on POEs tends to be highly sensitive to inspection delay Motivation: Conventional TDM approach treats POEs as “simple” external stations Yet, POEs usually handle more travel than inland access facilities Historical cooperation MPO-IMIP on Regional Modeling El Paso-Juarez Border integration

5. Develop a TDM to characterize transborder commuter travel (extend boundaries, eliminate external stations at POEs) Test TDM on different scenarios Joint Research objectives Bi-national setting Sensitive to land-use & transportation infrastructure Sensitive to crossing delay Historical cooperation MPO-IMIP on Regional Modeling El Paso-Juarez Border integration

6. Historical cooperation MPO-IMIP on Regional Modeling IMIP applies initial transborder travel surveys (1996) ICRC/MPO/IMIP develop TTDM Transborder BRT evaluated with TTDM (2004) IMIP is updating Juarez demographics for the MPO IMIP is conducting new series of transborder travel surveys on MX side (spring 2007) MPO will conduct new series of transborder travel surveys on US side (fall 2007) In 2007 new POEs will be evaluated El Paso-Juarez Border integration

7. The regional model component 1 EPTDM component 2 JZTDM component 3 EPTDM and JZTDM yield internal-to-city trips TTDM yield transborder trips Fratar technique used only for external trips to the region El Paso-Juarez Border integration

8. The regional model EPTDM and JZTDM yield internal-to-city trips TTDM yield transborder trips Fratar technique used only for external trips to the region El Paso-Juarez Border integration

9. The regional model EPTDM and JZTDM yield internal-to-city trips TTDM yield transborder trips Fratar technique used only for external trips to the region El Paso-Juarez Border integration

10. The regional model EPTDM and JZTDM yield internal-to-city trips TTDM yield transborder trips Fratar technique used only for external trips to the region El Paso-Juarez Border integration

11. 4-step sequential logic 24hr assignment The regional model (TTDM component) To be improved by intruduction of POE micro-simulation El Paso-Juarez Border integration

12. Travel surveys POE intercept questionnaires Brief design El Paso-Juarez Border integration

13. Travel surveys POE intercept questionnaires Brief design Pre-post crossing chains Household data Delay tolerance El Paso-Juarez Border integration

14. TTDM application (2005) Assignment for validation (Do-nothing scenario) El Paso-Juarez Border integration

15. TTDM application (2005) Assignment for validation (Do-nothing scenario) Conventional approach (external stations) El Paso-Juarez Border integration

16. Conclusions The TTDM significantly improves POE forecast accuracy, with a multimodal dimension. The TTDM is sensitive to POE delay (mode choice and POE choice now…trip choice after 2007). POE intercept questionnaires are a cost-effective survey instrument for a TTDM. Current census data fields can be used to develop a TTDM (US Census and INEGI variables). El Paso-Juarez Border integration Bi-national cooperation is a must