TY - CONF TI - Application of 3-D computer modeling using digital photogrammetry to measure shoreline change AU - Overton, M. F. AU - Fisher, J. S. C2 - 1997/// C3 - Coastal engineering 1996: Proceedings of the twenty-fifth international conference, September 2-6, 1996, The Peabody Hotel, Orlando 1997 CN - TC203.5 .C6184 1997 DA - 1997/// ER - TY - CHAP TI - Validation of a generalized delay model for vehicle-actuated signals AU - Rouphail, N. M. AU - Anwar, M. AU - Fambro, D. AU - Sloup, P. AU - Perez, C. T2 - Highway capacity issues and analysis CN - TE7 .H5 no. 1572 PY - 1997/// SP - 105-111 PB - Washington, DC: National Academy Press SN - 0309061504 ER - TY - CHAP TI - Validation of a generalized delay model for oversaturated conditions AU - Engelbert, R. AU - Fambro, D. AU - Rouphail, N. T2 - Highway capacity issues and analysis CN - TE7 .H5 no. 1572 PY - 1997/// SP - 122-130 PB - Washington, DC: National Academy Press SN - 0309061504 ER - TY - CHAP TI - Pedestrian impedance on turning movements saturation flow rates: A comparison of simulation, analytical and field observations AU - Rouphail, N. M. AU - Eads, B. T2 - Pedestrian and bicycle research 1997 CN - TE7 .H5 no. 1578 PY - 1997/// SP - 56-63 PB - Washington, DC: National Academy Press SN - 0309061687 ER - TY - BOOK TI - Mapping erosion hazard areas in Brunswick and Dare counties: Final project report DA - 1997/// PY - 1997/// PB - Raleigh, NC: DEHNR ER - TY - BOOK TI - ITS integration of real-time emissions data and traffic management systems AU - Rouphail, N. M. AU - al., DA - 1997/// PY - 1997/// PB - Transportation Research Board ER - TY - CHAP TI - Generalized delay model for signalized intersections and arterials AU - Fambro, D. AU - Rouphail, N. T2 - Highway capacity issues and analysis CN - TE7 .H5 no. 1572 PY - 1997/// SP - 112-121 PB - Washington, DC: National Academy Press SN - 0309061504 ER - TY - CONF TI - Proposed revisions to Highway Capacity Manual chapter 9: Pedestrian and bicycle analysis procedures AU - Milazzo, J. AU - Rouphail, N. AU - Allen, P. AU - Hummer, J. C2 - 1997/// C3 - Proceedings of the ASCE Specialty Conference: Traffic Congestion and Safety in the 21st Century, Chicago, IL, June 8-11, 1997 CN - HE336.C64 T697 1997 DA - 1997/// ER - TY - CHAP TI - Bicycle operations and level of service literature synthesis AU - Rouphail, N. M. AU - Hummer, J. E. AU - Allen, D. P. T2 - Final Draft, Federal Highway Administration, McLean, VA, January 1997 PY - 1997/// ER - TY - JOUR TI - Toward a class of link travel time functions for dynamic assignment models on signalized networks AU - Ran, B AU - Rouphail, NM AU - Tarko, A AU - Boyce, DE T2 - TRANSPORTATION RESEARCH PART B-METHODOLOGICAL AB - This paper investigates time-dependent travel time functions for dynamic assignment on signalized arterial network links. Dynamic link travel times are first classified according to various applications. Subsequently, stochastic and deterministic travel time functions for longer and shorter time horizons are discussed separately, and two sets of functions are recommended for dynamic transportation network problems. The implications of those functional forms are analyzed and some modifications for dynamic network models are suggested. In addition, based on dynamic link travel time functions, we discuss how many independent variables are necessary to describe the temporal traffic flow and properly estimate the time-dependent travel time and flow propagation over an arterial link. As a result, six link flow variables and corresponding link state and flow propagation equations are proposed as the basis to formulate dynamic transportation network models. DA - 1997/8// PY - 1997/8// DO - 10.1016/S0191-2615(96)00036-7 VL - 31 IS - 4 SP - 277-290 SN - 0191-2615 ER - TY - JOUR TI - Intelligent traffic data processing for ATIS applications AU - Tarko, A. AU - Rouphail, N. T2 - Journal of Transportation Engineering AB - Real-time traffic data are the lifeline sustaining the operation of Advanced Traffic Management and Advanced Traveler Information Systems (ATMS/ATIS). Data are essential to drive algorithms related to congestion/incident detection, travel time forecasting, and real-time route guidance. A common problem in many ATMS/ATIS applications is the sparsity of real-time traffic data, reflecting the financial constraints of acquiring and maintaining large-scale traffic monitoring systems. This paper proposes the use of intelligent processing, or data integration tools, to overcome the data sparsity problem and make the best use of existing data resources. This approach recognizes the elements of uncertainty and vagueness in defining and solving the problem. An example application of the proposed data integration method is presented in the context of a congestion detection algorithm. The method uses an imprecise knowledge representation within the framework of fuzzy operator logic (FOL) and the modified Dempster-Shafer rule of combination. Results indicate that knowledge of a link congestion status (i.e., congested or uncongested) increased several folds after the data integration algorithm was applied. Further work is needed to calibrate the algorithm in the field (in this study simulation was used) and to apply the procedures on large-scale networks. DA - 1997/// PY - 1997/// DO - 10.1061/(ASCE)0733-947X(1997)123:4(298) VL - 123 IS - 4 SP - 298-307 ER -