TRB's Transportation Cooperative Research Program (TCRP) Synthesis 75: Uses of Higher Capacity Buses in Transit Service explores the use of higher capacity (HC) public transit buses in trunk, express, long-distance commuter, Bus Rapid Transit, and special (e.g., sports and special events) services in North America. For purposes of this study, HC buses included articulated, double-deck, 45-ft, and other buses that have a significant increase in passenger capacity compared with conventional 40-ft buses.
TRB's Transit Cooperative Research Program (TCRP) Synthesis 71: Paratransit Manager's Skills, Qualifications, and Needs examines current requirements for being a paratransit manager and actual experiences of current paratransit managers in their positions. The synthesis is designed to help enhance the paratransit management profession and paratransit service delivery.
TRB's Transit Cooperative Research Program (TCRP) Report 114: Center Truck Performance on Low-Floor Light Rail Vehicles examines performance issues observed in the operation of low-floor light rail vehicle (LFLRV) center trucks (focusing on 70-percent low-floor vehicles), such as excessive wheel wear and noise and occasional derailments, and provides proposed guidance on how to minimize or avoid these issues. The report also includes suggestions on LFLRV specifications, maintenance, and design, as well as on related infrastructure design and maintenance, to maximize performance of these LFLRV
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 359: Bridge Rating Practices and Policies for Overweight Vehicles explores overweight vehicle permit processes. The report includes information on state and provincial bridge rating systems, bridge evaluation practices, and permit policies as they relate to overweight and oversize vehicles. The report is designed to help in the understanding of the reasons for nonuniform permitting practices. The report reviews specifications, software types, treatment of nonstandard configurations, and allowance for in-place dead loads; pro
TRB's Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 10: Alternative Truck and Bus Inspection Strategies explores the characteristics of the various types of alternative commercial truck and bus inspection strategies currently being used by law enforcement agencies. The synthesis examines how vehicles are selected for inspection; how, when, and where vehicles are inspected; and the consequences of violations. The synthesis also provides information on the effectiveness of the inspection strategies, documenting benefits such as reduced costs and improved resource allocatio
TRB's Transit Cooperative Research Program (TCRP) Report 109: A Guidebook for Developing and Sharing Transit Bus Maintenance Practices provides guidance on how to develop effective transit bus maintenance practices tailored to the local operating environment. The report provides seven sample practices developed using the guidance.
TRB's Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 6: Operational Differences and Similarities Among the Motorcoach, School Bus, and Trucking Industries is designed as a single resource for information on profiles, safety statistics, and general business operations for these three commercial vehicle industries.
This report from the Committee on Military Nutrition Research reviews the history of caffeine usage, the metabolism of caffeine, and its physiological effects. The effects of caffeine on physical performance, cognitive function and alertness, and alleviation of sleep deprivation impairments are discussed in light of recent scientific literature. The impact of caffeine consumption on various aspects of health, including cardiovascular disease, reproduction, bone mineral density, and fluid homeostasis are reviewed. The behavioral effects of caffeine are also discussed, including the effect of ca
TRB Special Report 232 - Advanced Vehicle and Highway Technologies addresses the overall objectives for a national intelligent vehicle- highway systems (IVHS) initiative and methods by which the program could be managed effectively.
The committee reviewed experience in the United States with existing systems that incorporate some IVHS technology; programs under way to develop and demonstrate advanced systems in the United States, Europe, and Japan; and proposals for new U.S. programs from Mobility 2000 and from others. It also considered alternative models for managing and implementing
TRB Special Report 205: Should Intercity Bus Drivers Be Allowed To Use CB Radios? recognizes the importance of improved communications on the highways, but also recognizes that CB radios have many drawbacks and are not sufficiently reliable to warrant recommending universal use on intercity buses.
Transportation Research Board (TRB) staff visited several bus companies, including some that allow their drivers to use CB radios. Staff members, unidentified to drivers, also rode a number of buses to gain firsthand experience with how CB radios are used by bus drivers who work for compani