Publications

2012
W. D. Fan and Machemehl, R. B., “Some Computational Insights on the Optimal Bus Transit Route Network Design Problem,” Journal of the Transportation Research Forum, vol. 47, 2012.Abstract
n/a
R. B. Machemehl, Seedah, D., Leite, F., Duthie, J., and Kolahdoozan, S., “State of the Practice for Workers in Very Short Duration Work Zone Operations”. 2012.Abstract
n/a
W. D. Fan, Machemehl, R. B., Gemar, M. D., and Brown, L., “A Stochastic Dynamic Programming Approach for the Equipment Replacement Optimization with Probabilistic Vehicle Utilization”. 2012.Abstract
n/a
Y. Yu and Machemehl, R. B., “Using Real Time Traveler Demand Data to Optimize Commuter Rail Feeder Systems”. Southwest Region University Transportation Center, Center for Transportation Research, University of Texas at Austin, 2012.Abstract
This report focuses on real time optimization of the Commuter Rail Circulator Route Network Design Problem (CRCNDP). The route configuration of the circulator system – where to stop and the route among the stops – is determined on a real-time basis by employing adaptive Tabu Search to timely solve a Mixed Integer Program (MIP) problem with an objective to minimize total cost incurred to both transit users and transit operators. Numerical experiments are executed to find the threshold for the minimum fraction of travelers that would need to report their destinations via smart phone to guarantee the practical value of optimization based on real-time collected demand against a base case defined as the average performance of all possible routes. The adaptive Tabu Search Algorithm is also applied to three real-size networks abstracted from the Martin Luther King (MLK) station of the new MetroRail system in Austin, Texas. Keywords: Commuter Rail Circulator Network Design Problem (CRCNDP), Austin Texas, Tabu Search, Mixed Integer Program
2011
W. (D. ) Fan and Machemehl, R. B., “Bi-Level Optimization Model for Public Transportation Network Redesign Problem,” Transportation Research Record: Journal of the Transportation Research Board, vol. 2263, pp. 151–162, 2011.Abstract
n/a
J. Brady, Loskorn, J., Mills, A., Duthie, J., and Machemehl, R. B., “Effects of shared lane markings on bicyclist and motorist behavior,” ITE Journal, vol. 81, 2011.Abstract
n/a
W. (D. ) Fan, Machemehl, R. B., and Kortum, K., “Equipment Replacement Optimization,” Transportation Research Record: Journal of the Transportation Research Board, vol. 2220, pp. 88–98, 2011.Abstract
n/a
E. H. Dawson, Liu, H., Xu, H., Cheu, R. L., and Machemehl, R. B., “Feasibility of Converting Two-Way Left-Turn Lane into Bus Rapid Transit Lane,” Transportation Research Record: Journal of the Transportation Research Board, vol. 2218, pp. 39–47, 2011.Abstract
n/a
Z. Zhang, Murphy, M., Harrison, R., Weissmann, J., Lomax, T., Schrank, D., Chi, S., Machemehl, R., Persad, K., Ellis, D., and others,It’s about time: investing in transportation to keep Texas economically competitive: Appendices,” 2011.Abstract
n/a
J. Brady, Loskorn, J., Mills, A. F., Duthie, J., and Machemehl, R. B., “Operational and Safety Implications of Three Experimental Bicycle Safety Devices in Austin, TX,” 2011 Annual Meeting of the Transportation Research Board, 2011.Abstract
n/a
K. Persad, Weatherby, C. A., Nash, P., Machemehl, R., Stockton, B., and Cleveland, T. G., “Proposed TxDOT Strategic Research Program”. 2011.Abstract
n/a
A. Mills, Duthie, J., Machemehl, R., Ferguson, E., Waller, T., and Sun, D., “Technical Report Documentation Page 1. Report No.,” 2011.Abstract
n/a
A. Mills, Duthie, J., Machemehl, R., and Waller, T., “Texas Roundabout Guidelines”. 2011.Abstract
n/a
A. Mills, Duthie, J., Machemehl, R., Ferguson, E., Waller, T., and Sun, D., “Texas Roundabout Guidelines: Final Report”. 2011.Abstract
n/a
2010
J. Duthie, Brady, J. F., Mills, A. F., and Machemehl, R. B., “Effects of On-Street Bicycle Facility Configuration on Bicyclist and Motorist Behavior,” Transportation Research Record: Journal of the Transportation Research Board, vol. 2190, pp. 37–44, 2010.Abstract
n/a
J. F. Brady, Duthie, J., Loskorn, J. A., Machemehl, R. B., and Mills, A. F., “Evaluation of four experimental bicycle safety devices in Austin, TX: Executive summary,” 2010.Abstract
n/a
N. E. Lownes and Machemehl, R. B., “Exact and heuristic methods for public transit circulator design,” Transportation Research Part B: Methodological, vol. 44, pp. 309–318, 2010.Abstract
n/a
Y. Yu and Machemehl, R. B., “Examining the Role of Trip Length in Commuter Decisions to Use Public Transportation”. Southwest Region University Transportation Center, Center for Transportation Research, University of Texas at Austin, 2010.Abstract
n/a
E. H. Pappas, Machemehl, R. B., and No, W. U., “Predicting the Incremental Effects on Transit Ridership Due to Bus-On-Shoulder Operations”. Southwest Region University Transportation Center, Center for Transportation Research, University of Texas at Austin, 2010.Abstract
n/a
A. R. Haire and Machemehl, R. B., “Regional and Modal Variability in Effects of Gasoline Prices on US Transit Ridership,” Transportation Research Record: Journal of the Transportation Research Board, vol. 2144, pp. 20–27, 2010.Abstract
n/a

Pages