TRANSPORTATION RESEARCH FORUM

Dedicated to the exchange of ideas among
researchers, professionals, and students and
an informed citizenry since 1958.

JTRF Archives

Now published by Elsevier, the Journal of the Transportation Research Forum (JTRF) seeks original manuscripts covering all facets of transportation economics and policy.” Starting in 2018, JTRF is published as a freestanding volume within Elsevier’s Research in Transportation Economics journal series. Member Access to Current JTRF Issues To activate your online access please visit https://www.sciencedirect.com/science/activate/trfrte […]

Summer 2016 (Vol. 55, No. 2)

Local Sensitivity Analysis of Forecast Uncertainty in a Random-Utility-Based Multiregional Input-Output Model Abstract Rare prior to the deregulation of the airline industry, air carrier bankruptcies became rather endemic in the period 1982-2005. Since 1982, over 175 airlines have filed under the bankruptcy codes. This number includes eight of the carriers that were formerly referred to as “trunk […]

Summer 2016 (Vol. 55, No. 2)

Safety Impacts of Converting Two-Way Left-Turn Lanes to Raised Medians and Associated Design Concerns Abstract Raised medians and two-way left-turn lanes (TWLTLs) are the two most common types of median treatments on arterial streets. This paper aims to conduct a detailed study on the safety impacts of conversion from TWLTLs to raised medians on state […]

Summer 2016 (Vol. 55, No. 2)

Adoption of Natural Gas Vehicles – Estimates for the U.S. and the State of Texas Abstract Natural gas vehicles (NGV) have attracted more and more attention from policy makers since natural gas is a clean substitute for traditional fossil fuel that is also readily accessible. In some areas such as the state of Texas, vehicles […]

Spring 2014 (Vol. 54, No. 1)

Safety and Economic Assessment of Converting Two-Way Stop-Controlled Intersections to Roundabouts on High Speed Rural Highways Abstract As part of the effort to implement the Strategic Highway Safety Plan (SHSP), state departments of transportation are looking to reach out to local and law enforcement agencies. This paper presents a study by the Florida Department of Transportation (FDOT) […]

Spring 2014 (Vol. 54, No. 1)

Review, Experimental Evaluation and Policy Considerations of a Directional Time of Day Truck Restriction on Highways Abstract The paper reviews several strategies of restricting or separating trucks from the regular traffic stream. Typical truck restriction policies focus on leftmost lanes restriction, which has been shown by several studies to have some advantages. However, those studies […]

Spring 2014 (Vol. 54, No. 1)

Multi-Vehicle Crashes Involving Large Trucks: A Random Parameter Discrete Outcome Modeling Approach Abstract A growing concern on large-truck crashes increased over the years due to the potential economic impacts and level of injury severity. This study aims to analyze the injury severities of multivehicle large-trucks crashes on national highways. To capture and understand the complexities […]

Spring 2014 (Vol. 54, No. 1)

Horizontal Cooperation in Network Expansion: An Empirical Evaluation of Gas Transportation Networks Abstract This research presents a coordination approach for the expansion of gas transportation networks to serve an increasing customer base. An empirical study of natural gas markets in the southeastern United States shows that horizontal cooperation among transportation service providers (i.e., pipeline companies) […]

Spring 2014 (Vol. 54, No. 1)

In the Decision to Code-Share a Route Different for Virtual and Traditional Code-Share Arrangements Abstract This paper analyzes factors that determine whether alliance carriers choose to remain in or leave a code-share agreement on individual routes. Different types of code-sharing are considered: traditional code-shared routes, virtual code-shared routes and those routes with both traditional and […]

Spring 2014 (Vol. 54, No. 1)

Equity Evaluation of Sustainable Mileage-Based User Fee Scenarios Abstract This paper examined equity changes from the imposition of a mileage-based user fee (MBUF) based on how revenue is collected as well as how it is spent. Using the 2009 National Household Travel Survey along with detailed transportation spending estimates, four scenarios were examined. A scenario […]