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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 314: Strategies for Managing Increasing Truck Traffic documents recent efforts by transportation organizations that construct, operate, and manage the transportation system and identifies truck-related challenges, planning activities for goods movement being undertaken, truck management strategies being considered, factors that have influenced the selection of particular strategies, and benefits expected from selected strategies.
Increased globalization has caused large increases in truck traffic on the nation's interstate system, with much additional growth expected in the coming years. This growth has elevated interest in developing new strategies to address rising levels of truck traffic, especially in dense and congested urban areas. This thesis focuses on the evaluation of several alternative lane management configurations as they compare to the current lane configuration in search of the best fit for operational improvement. This task was performed in two ways - survey and simulation. A survey of 500 long-haul truck drivers was administered in Knoxville, Tennessee, at the crossroads of major north-south and east-west interstate highways. The dataset was evenly divided between owner-operators and truck-company employed drivers. The survey suggested the alternative truck lane management configurations and most of the respondents supported moving truck lanes to the inside travel lanes to avoid merging and lane changing cars, either through traditional truck lanes restrictions or truck only lanes. The alternative lane configurations and the current lane configuration were simulated in VISSIM. Parameters such as speed, travel time, delay, and lane change were used for evaluating the configurations during simulation. A statistical test was applied to the results of the simulations. Each configuration yielded significantly different results in most cases and a few insignificant changes in other cases. One of the configurations - the optional truck only lane configuration, stood out as the best fit for operational improvements by offering high speeds, shorter travel times, smaller delay times and greater delay cost savings, and increased highway safety. Such configuration could potentially address the challenges faced by increasing truck traffic in congested urban areas.
Congestion continues to grow in America¿s urban areas. This report presents details on the 2004 trends, findings and what can be done to address the growing transportation problems. Trend data from 1982 to 2002 for 85 urban areas provides both a local view and a national perspective on the growth and extent of traffic congestion. The 2004 Report provides clear evidence that the time for improvements has arrived. Communicating the congestion levels and the need for improvements is a goal of this report. The decisions about which, and how much, improvement to fund will be made at the local level according to a variety of goals, but there are some broad conclusions that can be drawn from this database. Tables.
The continued loss of rail network infrastructure and rail service throughout the US has most instances resulted in the modal shift of rail freight back to truck. Rail freight converted to truck may have significant impact on pavement maintenance costs and activities due to the increased highway traffic volumes. This study will investigate three short-line rail routes in Minnesota, Wisconsin and the Upper Peninsula of Michigan and will determine the potential impacts of diverting rail freight flows to truck. A logistics flow routing will be created illustrating the new truck flows by highway classification and usage. The targeted highways current conditions and asset management techniques will be documented. A pavement maintenance model will be used to determine the incremental pavement maintenance cost per ton-mile if additional freight moved over various classes of highway and their impact on highway funding.
"A staff digest of the progress and status of NCHRP Project 20-5, "Synthesis of information related to highway problems," for which the Transportation Research Board is the agency conducting the research."
A smart port is defined as a port that uses technologies such as big data, AI, and IoT to manage transportation and logistics services. Smart Port Management and Strategy covers the design, operation and applications of a smart port to improve capacity and productivity. The book has been written by the author from an operations management perspective with the aim of providing technical knowledge to readers on how to use technology for optimizing port performance. Key Features: - Eight key topics relevant to smart port management - Focus on calculations and technical operations - Guidance on OCR, RFID and sensor technologies for gates - Includes information about port performance measurement - Includes access to Korean Port MIS - Covers automation equipment such as AGV, ARMGC, and remote control QC - Includes port simulation, digitization strategies and financial analysis Smart Port Management and Strategy is the definitive resource for anyone, whether they are professionals in transportation services or students of civil engineering or operations management, who want to learn about smart ports and how they are managed.
This synthesis will be of interest to state and local traffic engineers, transportation planners, transit operators, law enforcement officials, public information agencies, and others responsible for the transportation elements of freeway corridors. Information is provided on the policies and procedures for freeway corridor management, and descriptions of a number of techniques and practices are presented. Traffic growth and increasing congestion on urban freeways require a comprehensive approach toward managing the complex elements of freeway operations. This report of the Transportation Research Board provides information on freeway corridor management strategies, the components of management, examples of effective applications of the strategies, and benefits of freeway corridor management. The management techniques that are discussed include freeway surveillance and control; corridor street surveillance and control; high-occupancy vehicle facilities and incentives; police enforcement and traffic control; hazardous material and other truck traffic restrictions; alternative route planning; motorist assistance patrols; motorist information techniques; and traffic management for recurrent congestion, for incidents, for special events, and for work zones.