摘要:This document presents performance guidelines for the design and development of road departure warning systems to improve vehicle safety by eliminating or mitigating road departure crashes through driver notification or warning. Performance guidelines are presented for two classes of road departure warning systems: (1) Lane drift warning systems (LDWS) designed to warn in the event of an unintentional drift out of the travel lane, and (2) Curve speed warning systems (CSWS), designed to warn if the vehicle is approaching a curve too fast for the current conditions. These guidelines are intended to be used by manufacturers and developers of road departure warning systems as a tool to standardize system requirements, driver interface, and test procedures.
摘要:The Federal Motor Carrier Safety Administration (FMCSA) has produced 'A Motor Carrier's Guide to Improving Highway Safety' for our Education and Technical Assistance Program. This booklet provides basic compliance guidance to the Federal Motor Carrier Safety Regulations (FMCSRs). However, it is not intended to be a substitute for these regulations. The authors' overall goal is to improve the safe transportation of passengers and goods on the nation's highways, through a coordinated effort of Federal, State, and industry organizations to reduce fatalities, injuries, property damage and Hazardous Materials incidents. The authors implement this safety and compliance program through a national network of sixty-four field offices. This booklet is comprised of thirteen parts, each containing a specific safety regulation topic that is covered in the FMCSRs.
Calderon, E.; West, R.; Jurkofsky, T.; Crockett, H.; Alexander, D. S.
摘要:The Contracting Out - Bench Marking Study Group has worked very hard in a short amount of time to provide accurate and timely data to support the Executive Quality Council's effort to collect data and report on the (1) the status of Federal Lands Highway (FLH) current activities, (2) information on State/consultant activities, and (3) best practices identified during the authors' effort. The focus of this data collection effort centers around the following six factors specifically articulated by the Federal Lands Highway, Executive Quality Council. They are as follows. (1) Level of Contracting Out - Identify what Preliminary Engineering and Construction Engineering functions are contracted out and compare to overall PE and CD budgets. Also compare engineering costs to overall construction program budget; (2) Critical Mass - Identify the optimum number of personnel required to deliver internal and outsourced work. Identify staff mix, structure, and processes needed to optimize work output; (3) Maintain Technical Expertise - Identify how an organization maintains Technical Expertise when they may be doing more contact oversight than technical work. How does an organization make decisions on which disciplines to maintain Technical Expertise in; (3) Cost Effectiveness - Identify whether cost is an important factor in deciding whether or not to contract work out. Identify methods or processes organizations use to control, evaluate, and monitor costs; (4) Training and Development - Identify the internal training an organization uses to educate their workforce when contracting out is a significant portion of their work; (5) Other Factors (Quality, Liability, Efficiencies) - Identify efficiencies and methods used to ensure quality products and services, and to ensure contractor accountability.
Polivka, K. A.; Faller, R. K.; Holloway, J. C.; Rohde, J. R.; Sicking, D. L.
摘要:A wide variety of traffic controlling devices are used in work zones, some of which are not normally found on the roadside or in the traveled way outside of the work zones. These devices are used to enhance the safety of the work zones by controlling the traffic through these areas. Due to the placement of the traffic control devices, the devices themselves may be potentially hazardous to both workers (or bystanders) and errant vehicles. The objective of the research project was to evaluate the safety performance of existing aluminum type III barricades through full-scale crash testing. The safety performance evaluations were conducted according to the Test Level 3 (TL-3) criteria set forth in the NCHRP Report No. 350.
Polivka, K. A.; Faller, R. K.; Sicking, D. L.; Rohde, J. R.; Holloway, J. C.
摘要:The objective of this research project was to evaluate the safety performance of standard W-beam guardrails installed at the slope break point of steep roadside slopes. The guardrail system was to be evaluated according to the Test Level 3 (TL-3) safety performance criteria set forth in the NCHRP Report no. 350 (2). If necessary, a new guardrail system would then be designed and tested that could meet NCHRP Report no. 350 criteria when installed at the break point of a roadside foreslope as steep as 2:1.
Jones, W. B.; Cassady, C. R.; Bowden, R. O.
摘要:Despite the growing emphasis being placed on intermodal transportation by government and industry, a consensus definition of intermodal transportation does not exist. The purpose of this paper is to propose a standard definition for intermodal transportation. Several definitions for intermodal transportation are presented, compared and critiqued. Themes common to this cross-section of definitions are combined with other potentially important concepts to develop a definition that captures the full scope of intermodal transportation. A thorough analysis of each element of the definition, along with reasoning for its inclusion is also presented.
Karimi, H. A.; Hummer, J. E.; Khattak, A. J.
摘要:This report contains the findings of a study to improve the collection and presentation of physical roadway inventory data through the application of existing, emerging, and transferable technology. Technical viability and cost-effectiveness for the most promising data collection technologies were verified, as were the processes for populating databases. Application of a linear indexing scheme to these databases permitted automation of straight-line diagram (SLD) production, proving the entire methodology feasible. The contents responsible for planning, administering, maintaining, and improving highway systems, as well as the many, varied transportation department units that currently input or use inventory data.
摘要:This is the second report on shallow draft inland river public port capital expenditures published by the Maritime Administration (MARAD) in cooperation with industry. The report analyzes investments in shoreside facilities and examines the financing methods used by the shallow draft port industry for 1998, as well as historic data through 1997. Other port data, such as type of operation and type of governance, are also included. The survey data were obtained for MARAD by two industry associations, the National Waterways Conference (NWC) and the Inland Rivers, Ports & Terminals, Inc. (IRPT). The agency wishes to thank the 45 ports that responded to the survey. These organizations are listed in Appendix A.
摘要:Fruit Growers Supply Company entered into a cooperative project agreement with the US Fish and Wildlife Service in 1998 to correct past erosion problems on FGS' main access road up Patterson Creek in Scott Valley, California. The primary goals of the project were to reduce ongoing road erosion and sediment discharge into Patterson Creek thereby improving downstream spawning habitat for anadromous fisheries. The entire project took a little over 1 month to complete staring in mid September 1999, and ending in late October, 1999.