Freight Transportation and the Potential for Invasions of Exotic Insects in Urban and Periurban Forests of the United States

2009 ◽  
Vol 102 (1) ◽  
pp. 237-246 ◽  
Author(s):  
Manuel Colunga-Garcia ◽  
Robert A. Haack ◽  
Adesoji O. Adelaja
Keyword(s):  
United States ◽  
Freight Transportation ◽  
The United States ◽  
Exotic Insects

scholarly journals Logistics Costs Based Estimation of Freight Transportation Demand

2010 ◽  
Author(s):  
Michael F. Gorman ◽  
Daniel G. Conway
Keyword(s):  
United States ◽  
Capacity Planning ◽  
Freight Transportation ◽  
Distribution Networks ◽  
The United States ◽  
Service Level ◽  
Traffic Flows ◽  
Intermodal Transportation ◽  
Transportation Demand ◽  
Potential Demand

Many supply chain and fi nished goods distribution networks involve intercity freight transportation. Shipping customers secure transportation services by matching their requirements to available service in an effort to minimize their total logistics costs subject to service level constraints. Frequently, shippers' modal decisions are constrained by short-term capacity constraints restricting one of the available options, or gaps in shipper knowledge or carrier marketing programs. As a result, the observed traffic flows may not reflect the potential demand for the mode. Because the potential demand for a mode is not directly measurable, when planning road and rail capacity, governments and railroads cannot make accurate capacity planning decisions based on current traffic flows. The model developed here identifi es the potential demand for intercity full truckload and intermodal shipments over the most heavily utilized 75,000 shipment lanes in the western United States by estimating minimum total logistics costs by mode. These flows are compared with actual U.S. freight flows in order to determine the differences between observed flows and the model estimated potential demand. The results indicate potential demand for intermodal transportation is high; considerable freight volumes could be delivered with lower logistics cost by switching from truck to intermodal transportation. This evidence suggests that observed traffic flows and trends may not be a sound basis for planning freight transportation infrastructure in the United States.

scholarly journals Surface freight transportation in Mexico post NAFTA

2003 ◽  
Vol 14 (1) ◽  
pp. 14-21
Author(s):  
Richard L Clarke
Keyword(s):  
United States ◽  
Freight Transportation ◽  
Cost Effective ◽  
The United States ◽  
Cross Border ◽  
The U.S

One of the significant expressed objectives of NAFTA was the improvement of cross-border transportation to enable a more efficient and cost effective flow of goods among Mexico, Canada and the United States. This article examines the changes that have taken place in surface freight transportation between Mexico and the U.S. since NAFTA was signed in 1993.

The Populist Appeal of Deregulation: Independent Truckers and the Politics of Free Enterprise, 1935–1980

2009 ◽  
Vol 10 (1) ◽  
pp. 137-177
Author(s):  
Shane Hamilton
Keyword(s):  
United States ◽  
Corporate Control ◽  
Freight Transportation ◽  
The United States ◽  
Trucking Industry ◽  
Free Enterprise ◽  
Government Officials ◽  
Federal Bureaucracy ◽  
The Voice ◽  
Teamsters Union

After spending a decade as an independent trucker hauling milk, watermelons, and paper across the United States, Mike Parkhurst sold his tractor-trailer in 1961 and used the proceeds to establish Overdrive magazine—the “Voice of the American Trucker.” Believing “truckers were ready for a magazine that would pull no punches,” Parkhurst launched a decades-long editorial assault on transportation regulations that he believed bound American enterprise in the chains of corporate control, government malfeasance, and brutish boss unionism. By the mid-1970s, Parkhurst became one of the nation's most outspoken advocates of transportation deregulation. As he told a reporter for Time in 1975, he hoped “to wake the truckers up to the fact that they're slaves to a monopoly”—a monopoly on freight transportation maintained by corporate trucking firms, abetted by the Teamsters Union, and sanctioned by corrupt government officials. In the summer of 1979, Parkhurst helped to orchestrate a nationwide strike by tens of thousands of independent truckers, in which drivers demanded, according to William Scheffer of the Overdrive-sponsored Independent Truckers Association, “the dismantling of a giant Federal bureaucracy that has grown to govern the trucking industry since the mid-1930's.”

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