HOV to HOT Conversion Impacts on Carpooling

Project Description: 

The goal of this study is to better understand the impact of HOV/HOT conversions on carpools, and the potential implications for the successful implementation of regional managed lanes plans in Atlanta and other major metropolitan areas. The team will work with GDOT and the Georgia Department of Revenue to identify specific households that changed carpooling activity and invite these drivers by mail to participate in the mail-out/mail-back survey. The survey results will identify the most important factors affecting changes in carpooling activities in each demographic groups.

Final Report

HOV to HOT Conversion Impacts on Carpooling


  1. "I-85 HOV to HOT Carpool Survey Results", presented at the 2015 UTC Conference for the Southeastern Region in Birmingham, Alabama, March 26-27, 2015.

Project Information Forms:

  1. January 2014
  2. July 2014
  3. January 2016
Describe Implementation of Research Outcomes (or why not implemented) : 

We have developed the survey instrument (mail out/mail back paper survey). We are finalizing the sampling plan. The paper surveys will be distributed in September 2014.

Principal Investigator(s) Contact Information: 
Yanzhi.xu@ce.gatech.edu , Randall.guensler@ce.gatech.edu
Georgia Institute of Technology
Start and End Dates: 
11/01/13 - 11/01/14
Economic Competitiveness

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