Modeling Passing Lane Behavior on 2-Lane Highways
Alaska DOT&PF is introducing differential speed limits in passing zones located between Mileposts 59-66 on the Seward Highway. This study will conduct a before/after study to examine the effects of differential speed limits on traffic flow characteristics, along with drivers’ perception of this change. The objectives for the study are (specific details are presented below): (1) To validate the proposed strategy and examine its effects on traffic flow, based primarily on speed in each lane and speed differential between lanes; (2) To measure the change in behavior of drivers passing slow moving vehicles by classification of vehicles driven, as well as those passed (as captured near the middle of the passing zone); (3) To examine the effect on merging behavior of drivers, particularly by measuring the passing demand served versus unserved demand which remains at the end of each passing lane, relative to the legal speed limit as a minimum; and (4) To analyze drivers’ perceptions of the passing zone operation and control using an onsite survey.
Project
- Status: Completed
- Funding: $300000
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Sponsor Organizations:
Federal Highway Administration
Alaska Division
709 West 9th Street, Room 851
Juneau, AK United States 99802-1648 -
Managing Organizations:
Alaska Department of Transportation and Public Facilities
Research & Technology Transfer
2301 Peger Road
Fairbanks, AK United States 99709-5399 -
Performing Organizations:
University of Alaska Anchorage
2900 Spirit Drive, EIB 301 L
Anchorage, AK United States 99508 - Start Date: 20150101
- Expected Completion Date: 20191231
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Before and after studies; Behavior; Drivers; Merging traffic; Passing; Speed limits; Traffic flow; Two lane highways
- Geographic Terms: Alaska
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 01682805
- Record Type: Research project
- Source Agency: Alaska Department of Transportation and Public Facilities
- Files: RiP, USDOT, STATEDOT
- Created Date: Oct 5 2018 6:29PM