TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 1959 explores topics related to freeway operations and high-occupancy vehicle systems. Subjects include an examination of obstacles to transportation and emergency services; a method to analyze components of freeway congestion; an assessment of environmental data to predict real-time freeway incidents; the development of dynamic message sign alerts according to driver information needs; the effects of single-occupant hybrid vehicles in high-occupancy vehicle lanes; and a feasibility analysis of a high-occupancy toll lane network in Dallas–Fort Worth, Texas.
Individual TRR Journals, which are published on an irregular basis throughout the year, consist of collections of peer-reviewed papers on specific transportation subject areas and modes. Abstracts of papers that make up this TRR are available through TRB's Publication Index.
TRR Journals may also be purchased on an annual subscription basis. Each year, TRB publishes approximately 45 volumes of the TRR Journal, containing more than 800 papers grouped by subject.