Project 4.10: Road Salt Impact Assessment (Safety Study)

Road Salt Impact Assessment (Safety Study)

Project 4.10

Project Summary

The proposed study supports a project sponsored by Maine DOT titled as “Road Salt Impact Assessment.” Winter weather and maintenance treatments have significant impact on highway safety and operations. Understanding the safety impact of these factors directly influence decisions on diminishing maintenance funds, and cost-benefit analysis of alternative maintenance strategies. This research will conduct exploratory analysis of fatal (K), injury (ABC), and property damage only (PDO) crashes in Maine. Models will be developed to explore to what extent seasonal (i.e., winter vs. non-winter) and monthly weather factors impact frequency of lane departure crashes in Maine. The proposed research will also analyze the impact of different roadway, driver, and weather factors on the severity of single-vehicle lane departure crashes on rural roadways in Maine.

Principal Investigator

Dr. Jonathan Rubin


Dr. Mohammadali Shirazi


University of Maine

Project Status


Project Cost


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Office of the Assistant Secretary for Research and Technology, University Transportation Centers Program, Department of Transportation, MaineDOT.

Implementation of Research Outcomes:

Implementation of outcomes of the research has yet to be realized upon the recent completion of the work.

Impacts and Benefits of Implementation:

Impacts and benefits of the research have yet to be realized upon the recent completion of the work.

Printable Project Information Sheet

Printable Final Report

September 2020 Quarterly Progress Report

January 2021 Quarterly Progress Report

March 2021 Quarterly Progress Report

July 2021 Quarterly Progress Report

October 2021 Quarterly Progress Report

December 2021 Quarterly Progress Report

March 2022 Quarterly Progress Report

June 2022 Quarterly Progress Report

September 2022 Quarterly Progress Report