1. Buckholz, J. W. (1993). “The 10 major pitfalls of coordinated signal timing.” ITE Journal, Vol. 63, No. 8, pp. 27–29.
2. Bullock, D. and Abbas, M. M. (2001). A real-time offset transitioning algorithm for coordinating traffic signals, FHWA/IN/JTRP-2001/5, Federal Highway Administration, Washington, DC.
3. Click, S. M. and Rajagopalan, A. (2008). “Evaluation of variable maximum green time to improve rural traffic signal operations.” Transportation Research Record 2080, pp. 75–83.
4. Engelbrecht, R. J., Venglar, S. P., and Tian, Z. (2001). Research report on improving diamond interchange operations using advanced controller features, FHWA/TX-02/4158-1, Federal Highway Administration, Washington, DC.
5. Kim, D. and Lee, Y. (2013). “Modelling crash frequencies at signalized intersections with a truncated count data model.” International Journal of Urban Sciences, Vol. 17, Issue 1, pp. 85–94.