Current research suggests that vehicle emission rates are highly correlated with modal vehicle activity and that specific instances of load-induced enrichment may contribute a disproportionate share of motor vehicle emissions. Consequently, researchers have been developing a variety of modal modeling approaches to transportation-related air quality modeling. Modal models predict emissions as a ...

When increasing use of the private automobile intensified street traffic congestion, cities, generally pursued one or two types of policies. The "Car accommodation policy" was aimed 'primarily at accommodating the car and highway traffic, neglecting all other modes. The "Balanced transportation policy" was directed to achievement of a co-ordinated system of different transportation modes. The f...

Discussions of urban form invariably lead to discussions of urban transportation. This is understandable, as transportation has proven to be among the most influential factors affecting the density and shape of metropolitan areas. This topic is of particular interest to those involved in the design of new communities or in the redevelopment of older ones. These individuals may not have a backgr...

Title of Dissertation: DYNAMIC DECISION MAKING FOR LESS-THAN-TRUCKLOAD TRUCKING OPERATIONS Behrang Hejazi, Doctor of Philosophy, 2009 Directed By: Professor Ali Haghani Department of Civil and Environmental Engineering On a typical day, more than 53 million tons of goods valued at about $36 million are moved on the US multimodal transportation network. An efficient freight transportation indust...

This paper summarizes basic principles for transportation planning. It describes conventional transport planning, which tends to focus on motor vehicle traffic conditions, and newer methods for more multi-modal planning and evaluation. Multi-Modal Transportation Planning Victoria Transport Policy Institute 1 Conventional Transportation Planning Multi-modal planning refers to planning that consi...

Multimodal transportation systems, with several coexisting services like bus, tram and metro, can be represented as time-resolved multilayer networks where the different transportation modes connecting the same set of nodes are associated with distinct network layers. Their quantitative description became possible recently due to openly accessible datasets describing the geo-localized transport...

Nowadays, organizations have to compete with different competitors in regional, national and international levels, so they have to improve their competition capabilities to survive against competitors. Undertaking activities on a global scale requires a proper distribution system which could take advantages of different transportation modes. Accordingly, the present paper addresses a location-r...

Efficient and equitable planning requires comprehensive evaluation of impacts and options. This report describes principles for comprehensive transportation planning, evaluates conventional transport planning practices with regard to these principles, identifies common planning distortions, recommends practical methods for correcting these distortions and improving transport decision-making, an...

BACKGROUND Traffic-related trauma is an important contributor to morbidity and mortality in Canada, especially among children and young adults. Comparing exposure-based injury rates between travel modes and jurisdictions is a valuable tool towards improving safety. METHODS We used injury data from the British Columbia Motor Vehicle Branch, trip diary data from the Metro Vancouver transportati...

This article provides a new methodology for estimating fuel consumption and emissions by enabling a correct comparison between freight transportation modes. The approach is developed and integrated as a part of an intelligent transportation system dealing with goods movement. A key issue is related to energy consumption ratios and consequent CO2 emissions. Energy consumption ratios are often us...