1. Ashton, W.D., The Theory of Traffic Flow ( Methuen, London, 1966 ).
2. Garwood, F., An application of the theory of probability to the operation of vehicular-controlled traffic signals, J.R. Statist. Soc.B., 7 (1940), 65–77.
3. Hayman, D.P. and Sobel, M.T., Stochastic Models in Operations Research, Vol. 1, ( McGraw-Hill, New York, 1982 ).
4. Miller, A.J., Analysis of bunching in a rural two-lane traffic, Opns.Res., 9 (1963), 236–267.
5. Saaty, T.L., Elements of Queueing Theory, ( McGraw-Hill, New York, 1961 ).