TY - GEN
T1 - Application of an on-line procedure for estimating capacity under prevailing roadway and traffic conditions
AU - van Arem, Bart
AU - van der Vlist, Martie J.M.
AU - Smulders, Stef A.
PY - 1993
Y1 - 1993
N2 - In this paper the development and off-line testing of a procedure for estimating the current capacity at a motorway carriageway are described, the adjective 'current' referring to prevailing roadway and weather conditions. Such a procedure is important for dynamic traffic management applications, such as ramp metering and rerouting which crucially depend on reliable estimates of current capacity. The procedure is specifically aimed at estimating capacity while the traffic is still free-flowing. It is based on the combination of on the one hand an on-line estimate of the 'current' Fundamental Diagram, and on the other hand the maximal occupancy of a loop detector that may be achieved at a carriageway under free-flowing conditions. Suitable representations for the Fundamental Diagram and the maximal occupancy are based on investigations using a large set of data, reported in an earlier paper. The on-line procedure itself is developed and tested for different sets of weather conditions. Good responses of the procedure to changing weather conditions (dry/wet) have been obtained. It is concluded that the procedure offers promising perspectives for eventual application in dynamic traffic management systems. Suggestions for future research are given.
AB - In this paper the development and off-line testing of a procedure for estimating the current capacity at a motorway carriageway are described, the adjective 'current' referring to prevailing roadway and weather conditions. Such a procedure is important for dynamic traffic management applications, such as ramp metering and rerouting which crucially depend on reliable estimates of current capacity. The procedure is specifically aimed at estimating capacity while the traffic is still free-flowing. It is based on the combination of on the one hand an on-line estimate of the 'current' Fundamental Diagram, and on the other hand the maximal occupancy of a loop detector that may be achieved at a carriageway under free-flowing conditions. Suitable representations for the Fundamental Diagram and the maximal occupancy are based on investigations using a large set of data, reported in an earlier paper. The on-line procedure itself is developed and tested for different sets of weather conditions. Good responses of the procedure to changing weather conditions (dry/wet) have been obtained. It is concluded that the procedure offers promising perspectives for eventual application in dynamic traffic management systems. Suggestions for future research are given.
UR - http://www.scopus.com/inward/record.url?scp=0027813708&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0027813708
SN - 0780312368
T3 - Proceedings of the IEEE-IEE Vehicle Navigation and Informations Systems Conference
SP - 169
EP - 173
BT - Proceedings of the IEEE-IEE Vehicle Navigation and Informations Systems Conference
A2 - Anon, null
PB - Publ by IEEE
T2 - Proceedings of the IEEE-IEE Vehicle Navigation and Informations Systems Conference
Y2 - 12 October 1993 through 15 October 1993
ER -