Comparison of Cost Models for Urban Transit." Highway Research Record 435, 1973, pp. 11-19. (Co-author) (Recipient of Pyke Johnson Award for Outstanding Paper in the Field of Transportation Systems Planning and Administration).

"An Evaluation of Allocation Methodologies for Public Transportation Operating Assistance." Transportation Journal, Vol. 19, No. 1, Fall 1979, pp. 40-49.

"The Use of Performance-Based Methodologies for the Allocation of Transit Operating Funds." Traffic Quarterly, Vol. 34, 1980, pp. 555-585.

"Performance Evaluation of Alternative Forms of Coordinated Specialized Transportation." Mobility and Transport for Elderly and Handicapped Persons: Proceedings of a Conference held at Churchill College, Cambridge, England, July 14-16, 1981. Gordon and Breach Science Publishers, New York, 1983, pp. 195-203.

A Study of the Administrative Feasibility of the Post-Bus for Rural Transportation in Pennsylvania. Final Report to Pennsylvania Department of Transportation. PTI Report 8323. Pennsylvania Transportation Institute, 1983. 91 pp. (Co-author)

Pennsylvania Intercity Bus Study. Final Report to Pennsylvania Department of Transportation. PTI Report 8407. Pennsylvania Transportation Institute, 1984, 143 pp. (Co-author)

The Use of School Buses for Public Transportation in Energy Emergencies. Report to Pennsylvania Department of Transportation. PTI Report 8502. Pennsylvania Transportation Institute, 1985, 81 pp.

Transportation on College and University Campuses: A Synthesis of Transit Practice, TCRP Synthesis 39 (PDF, 1625K), Transit Cooperative Research Program, Transportation Research Board, 2001, 62 pp.