Effective Capacity Analysis and Traffic Data Collection for the I-85 HOV to HOT Conversion

Project Number: 
Project Description: 

To (1) perform data collection and analytical efforts that support the regional conversion of HOV lanes into high-occupancy toll (HOT) lanes, and (2) assess the impacts of HOT conversion on the I-85 corridor.

Final Report



  1. Analysis of Variables that Affect HOT Speeds on I-85 Express Lanes in Atlanta Analysis of Variables that Affect HOT Speeds on I-85 Express Lanes in Atlanta (September 2013)
  2. Emissions Impact of HOV to HOT Lane Conversions in I-85, Atlanta (September 2014)
  3. High-Occupancy Toll Lane Decision Making: Income Effects on Atlanta's I-85 Express Lanes (September 2015)
  4. HOV-to-HOT Conversion Socieoeconomic Impact Assessment: Atlanta I-85 HOV-to-HOT Conversion (September 2014)
  5. "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.
  6. Pricing Impact on Users: Socioeconomic Study on I-85 HOV2 to HOT3 Conversion (September 2013)
  7. The I-85 HOT Lane’s Impact on Atlanta’s Commuter Bus and Vanpool Occupancy (September 2013)
Principle Investigator(s) Contact Information: 
randall.guensler@ce.gatech.edu / 404-894-0405
Georgia Institute of Technology
Start and End Dates: 
05/17/10 - 05/17/13
Asset Management

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