Compared with much of the world, the United States has relatively few highway tunnels. Norway, for instance, has more than 900 roadway tunnels, while the entire United States has 503. In a feature article in TR News magazine, Number 327, May-June 2020, the authors examine the challenges of using tunnels in a road or rail network, including relatively high first costs, the need for continuing ma...

TRB’s Transportation Research Record (TRR), No. 2670 consists of 11 papers that explore finance and pricing, including: Measuring Drivers’ Attitudes Toward Use of Electronic Toll Collection Systems in Spain Probabilistic Approach to Evaluate Acceptable Toll Rates in Road Concessions Assessing the California Fuel Tax Swap of 2010 Who Should Pay for Local Streets? Who Does? Survey of New Jersey M...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2635 consists of 11 papers that explore visibility and work zone traffic control, including: Developing a Web-Based Tool to Track Highway Safety Planning Progress in California Probability of Secondary Crash Occurrence on Freeways with the Use of Private-Sector Speed Data Roadway Safety Policy and Leadership...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2603 consists of 10 papers that explore aviation, including: Enhancing Safety Risk Management with Quantitative Measures Data-Driven Planning for Ground Delay Programs Representative Weather Profiles in Airport Planning Forecasting Airport Building Electricity Demand on the Basis of Flight Schedule Informati...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2508, explores 13 papers related to concrete materials, including: Development of Innovative Antifreeze Grout Mortar for Anchor Applications in Cold Regions Interlaboratory Study and Precision Statement for AASHTO T 336 Test Method Flexural Behavior of High-Volume Fly Ash Concrete Beams: Experimental Study A...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2498 consists of 13 papers covering the following topics relating to network modeling: Markov Chain Modeling of Pavement Surfacing Heuristic Approach to Capacitated Traffic Assignment Problem for Large-Scale Transport Networks Parking Reservation for Managing Downtown Curbside Parking Investigation of Centro...

TRB’s Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2446 consists of 10 articles that explore a method for evaluating moisture susceptibility and rutting using the Hamburg wheel tracking test; the influence of air void content on moisture damage susceptibility of asphalt mixtures; a performance-based moisture susceptibility evaluation of warm-mix asphal...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2323 consists of 12 papers that examine peoples' sense of place through the use of the mixed-method approach; modeling traveler response to park-and-ride; automobility; travel patterns of the elderly; structural equations model of land use patterns, location choice, and travel behavior; parental attitudes to...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2322 contains 14 papers that address aspects of travel behavior including composition of vehicle occupancy for work trips; hybrid choice sets in semicompensatory models; integrating walkability with planning practices; the influence of environmentalism and variety on mode choice; behavioral insights models; ...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2316 consists of 15 papers that explore gap acceptance behavior; driving behavior in emergency situations; driver anticipation; phase transition models; integrated lane change models; models for pedestrian-vehicle interactions at road crossings; midblock pedestrian crossings; exit choice decisions during ped...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2296 consists of 15 papers that explore dynamic modulus master curves; the self-healing capability of asphalt mixtures; permanent deformation of asphalt concrete in compression; asphalt concrete fatigue analysis; hot-mix asphalt permanent deformation; calibration and validation of overlay tester-based fatigu...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2295 consist of 8 papers that explore the measurement of hydraulic conductivity in porous mixes, surface friction performance of chip seals, asphalt pavement surface texture, moisture susceptibility testing of warm-mix asphalt mixes, material characteristics of asphalt mixtures relationship to highway noise,...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2294 consists of 12 papers that explore reclaimed asphalt pavement mixtures; the effects of aggregate gradation on performance of Superpave mixtures; warm-mix asphalt mixtures and additives; and filler fractional voids.

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2277 consists of 10 papers that explore bus rapid transit, emissions from bus rapid transit and conventional bus systems, faulty automatic vehicle location and control units, spacing of transit stops, and the grouping of bus stops. This issue of the TRR also examines discount curbside bus operators, hum...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2276 consists of 19 papers that examine world transit research; the optimal length of a transit network; location methods for urban public transit networks; dynamic transit accessibility; stop aggregation models; the activities of smart card data transit users; bus timetables for multiple vehicle types; seco...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2275 consists of 14 papers that examine light rail turf tracks, light rail crashes, streetcar dwell time, determinants of light rail mode choice, tram-train systems in Europe, urban rail in China, and rail transit travel time reliability and estimation of passenger route choice behavior. This issue of the TR...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2274 issue contains the 2012 Thomas B. Deen distinguished lecture on the future of public transportation. This issue also contains 20 other papers that explore the business plan approach of a transportation agency; distribution of federal transit funds; Friday exceptions in weekday schedules for urban transi...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2271 consists of seven papers that explore institutionalizing sustainability, sustainable roadway design and construction, barriers to sustainable intercity transportation, aggregating highway asset performance measures, web-based freeway and arterial performance measurement system, and enterprise risk manag...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2265 consists of 28 papers that explore reducing side collisions of transit buses, injury risk in collisions involving buses, prevention of tractor–semitrailer rollovers, large-truck transportation alternatives, evaluating truck safety systems, factors associated with motorcycle crashes, and severity of moto...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2261 consists of 21 papers that explore the economic impacts of high-speed rail and intercity passenger rail service, safe high-speed rail operation, fire development and spread in passenger rail vehicles, geometry of high-speed turnouts, and international variation in cost–benefit analysis of urban rail pro...