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Full-Text Articles in Engineering

Amis: Least Cost Path Analysis For Transportation Planning, Joel Brumm, Ted H. Grossardt, Keiron Bailey Jul 2002

Amis: Least Cost Path Analysis For Transportation Planning, Joel Brumm, Ted H. Grossardt, Keiron Bailey

Kentucky Transportation Center Faculty and Researcher Publications

The State requested a GIS-based route planning tool. More than 50 raster data layers were assembled within ArcView 3.2, encompassing a full spectrum of demographic, physical, and cultural features. These data layers were given a numerical rating using multicriteria decision making software and input from professionals from a variety of fields. The multicriteria decision making software then set the relative importance of these surface features as impediments or attractors, creating a travel-cost surface. This synthesis of technologies, combined in a tool termed AMIS (Analytic Minimum Impedance Surface), found the least-cost path to any point within the study area.


Efficiency Through Accountability: Some Lessons From Kentucky’S Improved Medicaid Transit Service, Lenahan O’Connell, Ted H. Grossardt, Bruce Siria, Scott Marchand, Maureen Mcdorman Jan 2002

Efficiency Through Accountability: Some Lessons From Kentucky’S Improved Medicaid Transit Service, Lenahan O’Connell, Ted H. Grossardt, Bruce Siria, Scott Marchand, Maureen Mcdorman

Kentucky Transportation Center Faculty and Researcher Publications

The cost of providing nonemergency transportation to Medicaid and other transportation-eligible people has escalated sharply in the United States. In response, many states have reformed their human services transportation delivery systems. In this paper, we assess the results of Kentucky’s comprehensive reform of its transit system, including the impact on the quality of transit service for Medicaid-eligible users. With three sources of data—financial and other service data, a sample of Medicaid-eligible residents, and a sample of the transit providers—we assess the effectiveness of the new system. The data show that patronage levels increased dramatically under the new process, while unit …