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The goal of this project was to analyze geometric, speed, volume, and crash data for a broad range of conditions with the ultimate objective of establishing bases for warrants for right-turn lanes on two-lane roads where major approach did not have any controls. Right-turn lane guidelines for this contest is not clear and convincing. Safety effectiveness and savings were estimated using extensive data examination and analysis of crash data, several statistical models that were developed using crash data, and a conflict model, which was developed using field data. It was found that not all accidents are eliminated with use of right-turn lane. However, right-turn lanes were effective in improving safety. More interesting was the finding that safety effectiveness of right-turn lanes was more at driveways than at intersections. Operational effectiveness was estimated using a delay model and a fuel consumption model, which were developed using field data, simulation software (CORSIM®), and statistical software, Minitab®. The volume thresholds that varied with changes in right-turn lane cost and fuel cost were provided as alternative scenarios for warrants. The warrants established here will be helpful in decision-making regarding whether to implement a right-turn lane or not on two-lane roads.

Development of freight performance measures and indicators is intended to assist the Office of Freight and Commercial Vehicle Operations (OFCVO) of Minnesota Department of Transportation (Mn/DOT) in responding to key stakeholders in the public and private sectors regarding the performance of Minnesota's freight transportation system and in assisting Mn/DOT's long-range planning efforts such as the update of Mn/DOT's Statewide Transportation Plan and its Statewide Freight Plan. Freight measurement sources (data and information sources) were compiled, analyzed, organized, and classified for all modes of transportation and different performance measure and indicator categories. The classification of measurement sources was done for performance measure and indicator categories pertaining to network and infrastructure, safety or damage, access, capacity, travel time, reliability, market share, mode share, modal costs, freight productivity, freight security, shipping rates, pricing, agency cost, carrier cost, shipper cost, externalities and community cost, transportation indices, and external factors related to or affecting freight movements within, through, out of, and into Minnesota. Assessment of key performance measures and indicators, and related measurement sources was carried out. Barriers, best available measurement sources, good existing practices, and recommended improvements pertaining to measurement sources for freight performance measures and indicators for Minnesota were identified.