1. “100% Funding for Traffic Signalization ” Eagle Signal Corp. Austin Tex.
2. Area‐Wide Traffic Study Prepared for City of Decatur Illinois; Barton‐Aschman Associates Inc. Evanston Ill. Oct. 1979.
3. Baerwald John E. Ed. Transportation and Traffic Engineering Handbook Institute of Traffic Engineers Prentice‐Hall Englewood Cliffs N.J. 1976.
4. Berry D. S. and Gandhi P. K. “Headway Approach to Intersection Capacity ” HRR 453 1973 pp. 56–60.
5. Breuning M. E. “How are Progressive Signals Timed ” 1940 Proc. ITE pp. 79–91; (cited in Ref. 4).