Freeway ramp control systems are used to control the flow of vehicles onto the freeway and, thereby, maintain the freeway operations at an acceptable level of service. A green band moving-merge system displays along the on-ramp, information to the ramp drivers to help them identify gaps and merge easily into the freeway flow. The first test and evaluation of the green band concept was undertaken in Woburn, Massachusetts in 1970. The report describes various traffic operation improvements made to the Woburn green band computer control system. System software changes have been made to minimize the loss of green bands, to stabilize the ends of the moving green bands, and to segment long green bands into shorter, more useable bands. Improvements are also described (1) for preventing the unnecessary surge of ramp vehicles to the merge area when the green band system changes modes, and (2) for making during the stopped mode the system more responsive to ramp and merge area obstructions. (Portions of this document are not fully legible)
Operational Software Modifications to the Moving Merge Control System in Tampa, Florida
1977
315 pages
Report
Keine Angabe
Englisch
Transportation & Traffic Planning , Road Transportation , Computer Software , Freeways , Traffic engineering , Computer programs , Computerized simulation , Ramps , Vehicular traffic control , Display systems , Information , Motor vehicle operators , Computer programming , Fortran , Algorithms , Florida , Freeway merging process , Freeway ramp control , Ramp control , Tampa(Florida)
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