Primary Research Interests

Traffic Safety: Baseline safety analysis; safety performance functions; crash hot spots; effectiveness of safety countermeasures; crash modification factors; safety management systems; truck safety and operation on highways incorporating pavement deterioration and maintenance, traffic citations, weather conditions, and road closures.

Paved and Gravel Road Management Systems: Developing optimization methodology; budget optimization; capital improvement plan; and asset management systems including paved roads, unpaved roads, bridges and cattle guards; application of smartphone applications in assessing paved and unpaved road conditions; statewide road condition evaluation; and performance modeling to predict dust emission generated from gravel roads.

Transportation Planning: Estimation of traffic; paved and gravel road management systems; safety management systems.

FUNDED Projects as principal investigator

1.              “Developing a Low-cost Urban Traffic Safety Management System (TSMS) using Optimization Techniques – a Case Study.” Promothes Saha (PI), 2019, $8,000, Funded by Office of Sponsored Programs, Purdue University Fort Wayne.

2.              “Assessing Road Conditions for Wyoming County Gravel Roads.” Promothes Saha (PI) and Khaled Ksaibati, 2017–2018, $178,436, Funded by Mountain Plain Consortium (MPC).

3.              “A Monitoring Program for Wyoming County Paved Roads, 2017.” Khaled Ksaibati and Promothes Saha (Co-PI), 2017–2018, $150,000, Funded by Wyoming Department of Transportation (WYDOT).

4.              “Developing an Optimization Model for Managing County Paved Roads.” Khaled Ksaibati and Promothes Saha (Co-PI), 2015–2018, $169,742, Funded by Mountain Plain Consortium (MPC).

5.              “A Monitoring Program for Wyoming County Paved Roads, 2016.” Khaled Ksaibati and Promothes Saha (Co-PI), 2016–2017, $150,000, Funded by Wyoming Department of Transportation (WYDOT).

6.              “Rural Variable Speed Limit Systems: Phase II.” Yanfei Sui, Promothes Saha (Co-PI), Vijay Sabawat and Rhonda Young, 2010–2013, $182,403. Funded by Wyoming Department of Transportation (WYDOT) and Federal Highway Administration (FHWA).

Research Projects Participated

7.              “Evaluation of the WYDOT Research Center and Research Program.” 2016-2018, Funded by Wyoming Department of Transportation (WYDOT).

8.              “Assessing Road Conditions for Wyoming County Gravel Roads.” 2017–2020, Funded by Mountain Plain Consortium (MPC)

9.              “Developing an Optimization Model for Managing Low Volume Roads in Colorado.” 2017–2018, Funded by Colorado Department of Transportation (CDOT).

10.        “A Monitoring Program for Wyoming County Paved Roads, 2017”, 2017–2018,  Funded by Wyoming Department of Transportation (WYDOT).

11.        “Developing an Optimization Model for Managing County Paved Roads.” 2015–2018, Funded by Mountain Plain Consortium (MPC).

12.        “Developing Mitigation Strategies to Reduce Truck Crash Rates on Wyoming Highways.” 2015-2017, Funded by Wyoming Department of Transportation (WYDOT).

13.        “A Monitoring Program for Wyoming County Paved Roads, 2016”, 2016–2017, Funded by Wyoming Department of Transportation (WYDOT).

14.        “Developing a PMS for County Roads in Wyoming, 2014”, 2014–2015, Funded by Wyoming Department of Transportation (WYDOT).

15.        “Reliability of Rural Travel Times”, 2013 – 2014, Funded by WYDOT.

16.        “Rural Variable Speed Limit Systems: Phase II.” 2010–2013, Funded by Wyoming Department of Transportation (WYDOT), and Federal Highway Administration (FHWA).

17.        “WYDOT Evaluating Base Widening Methods”, May 2012–July 2012 and May 2013–July 2013, Funded by Wyoming Department of Transportation (WYDOT).

18.        “Pricing Strategies for Rural Freeways”, 2009–2011, Funded by Wyoming Department of Transportation (WYDOT).