Trucks

Estimation of Truck Traffic Volume from Single Loop Detectors Using Lane-to-Lane Speed Correlation

Kwon, Jaimyoung
Varaiya, Pravin
Skabardonis, Alexander
2003

An algorithm for real time estimation of truck traffic in multi-lane freeway is proposed. The algorithm uses data from single loop detectors-the most widely installed surveillance technology for urban freeways in the US. The algorithm works for those freeway locations that have a truck-free lane, and exhibit high lane-to-lane speed correlation. These conditions are met by most urban freeway locations. The algorithm produces real time estimates of the truck traffic volumes at the location. It can also be used to produce alternative estimate of the mean effective vehicle length, which can...

Intermodal Transportation Operation System ( ITOS ) For The State Of California

Hall, Randolph
Parekh, Chethan
Thakker, Viral
1998

Intermodal transportation entails the coordinated movement of different types of transportation (rail, truck, automobile, etc.) to serve the needs of travelers and shippers. The purpose of this report is to provide a vision for systems to coordinate intermodal operations in California in the future, and also to document the types of systems that are being used today in a range of transportation modes. An intermodal system could, conceivably, establish a center (or centers) that is responsible for the joint operation of multiple modes of transportation. This is not our preferred vision....

Historical Transportation Development

Garrison, William L.
2003

The main tasks for this overview of transportation development are the provision and interpretation of information on the unfolding of the transportation systems. What have been the processes at work? What explains the similarities and differences from here to there and among systems? Big questions! But they are eased by ways systems are products of experiences, as will be seen when the paragraphs immediately following summarize early experiences. Life support systems, sustainability, and social development topics will be mentioned. After examining their immediate precursors, the...

Vehicle Manufacturing Futures in Transportation Life-cycle Assessment

Chester, Mikhail
Horvath, Arpad
2011

Vehicle manufacturing effects are critical life-cycle components in the total costs of vehicle travel and future manufacturing processes should be evaluated for travel forecasts. With efforts to introduce lightweight materials, increased fuel economy, and new technologies such as electric vehicles, understanding the energy and environmental effects of these expected vehicles is critical. Current vehicle manufacturing energy use and greenhouse gas emissions are summarized from existing research for passenger (conventional gasoline vehicles, hybrid electric vehicles, aircraft, high-speed...

Unintended Impacts of Increased Truck Loads on Pavement Supply-chain Emissions

Sathaye, Nakul
Horvath, Arpad
Madanat, Samer M.
2009

In recent years, the reduction of freight truck trips has been a common policy goal. To this end, policies aimed at influencing load consolidation, load factors and increasing maximum truck weight limits have been suggested and implemented, resulting in higher gross vehicle weights. The purpose of such policies has generally been to mitigate congestion and environmental impacts. However, trucks cause most of the damage incurred by highways pavements. The supply chain associated with pavement maintenance and construction releases significant air emissions, raising the question of whether...

Virtual Commercial Vehicle Compliance Stations: A Review of Legal and Institutional Issues

Rodier, Caroline J.
Shaheen, Susan A.
Cavanagh, Ellen
2006

In the past five years, commercial vehicle travel has increased 60 percent on California’s highways, without a corresponding increase in compliance inspection station capacity or enforcement officers. Commercial vehicles that do not comply with regulations impose significant public costs including, for example, pavement and structure damage to roads and catastrophic crashes. In response to these problems, the California Department of Transportation is investigating the potential application of detection and communication technology in virtual compliance stations (VCS) to cost-effectively...

Forecasting Truck Parking Using Fourier Transformations

Sadek, Bassel A.
Martin, Elliot W.
Shaheen, Susan A.
2020

Truck-based transportation is the predominant mode used to transport goods and raw materials within the United States. While trucks play a major role in local commerce, a significant portion of truck activity is also long haul in nature. Long-haul truck drivers are continuously faced with the problem of not being able to secure a safe parking spot since many rest areas become fully occupied, and information about parking and availability is limited. Truck drivers faced with full parking lots/facilities either continue driving until a safe parking spot is located or park illegally....

Organizing For Its: Computer Integrated Transportation Phase 2: Results For Commercial Vehicle Operators

Hall, Randolf
Chatterjee, Indrajit
1995

This paper extends previous research on Computer Integrated Transportation (CIT) to commercial vehicle operations (CVO), specifically to examine how government can work with trucking companies within a CIT framework. The research entailed a review of how government currently interacts with trucking companies, interviews with trucking terminal managers, and case-studies on terminal operations at five of the nation's largest motor carriers. Opportunities are identified in the area of unifying interaction between government and industry and in the area of in- vehicle devices for automated...