A Financial analysis of the Cooperative Alliance for Seacoast Transportation (COAST) for fiscal years 1984-1993 /

Mode of access: Internet.

Elderly and handicapped transportation : eight case studies /

Mode of access: Internet.

Rural transportation projects on Indian reservations : a report on 11 demonstrations : final report /

Mode of access: Internet.

Project Right of Way : development of a transportation cooperative in Boston, MA /

"UMTA Technical Assistance Program."

Crime on public transportation vehicles : a subcommittee of the House Committee on Transportation report to the 81st general assembly.

Cover title.

Center city environment and transportation : transportation innovations in five European cities /

"April 1980."

The Pittsburgh neighborhood transportation service : a summary.

"Prepared by the U.S. Department of Transportation, Urban Mass Transportation Administration, Office of Service and Management Demonstrations"--P. [10].

Mass transit management : case studies of the Metropolitan Atlanta Rapid Transit Authority : final report /

"DOT-I-81-1."

Moving people : an introduction to public transportation /

Item 982-I-15

Cost saving methods for special transportation programs : final report /

"DOT-T-89-09."

Public private cooperation for better transportation.

"UMTA Technical Assistance Program."

Transportation energy contingency strategies /

Mode of access: Internet.

Quality of service in special transportation for the elderly and handicapped : final report /

Performing organization: Urban Transportation Center, University of Illinois at Chicago Circle.

Local economic impacts of transportation fuel consumption /

"DOT-I-84-01."

Problems of optimal transportation on the circle and their mechanical applications

We consider a mechanical problem concerning a 2D axisymmetric body moving forward on the plane and making slow turns of fixed magnitude about its axis of symmetry. The body moves through a medium of non-interacting particles at rest, and collisions of particles with the body's boundary are perfectly elastic (billiard-like). The body has a blunt nose: a line segment orthogonal to the symmetry axis. It is required to make small cavities with special shape on the nose so as to minimize its aerodynamic resistance. This problem of optimizing the shape of the cavities amounts to a special case of the optimal mass transfer problem on the circle with the transportation cost being the squared Euclidean distance. We find the exact solution for this problem when the amplitude of rotation is smaller than a fixed critical value, and give a numerical solution otherwise. As a by-product, we get explicit description of the solution for a class of optimal transfer problems on the circle.