The potential of metering roundabouts: influence in transportation externalities

Roundabouts are increasingly being used on busy arterial streets for traffic calming purposes. However, if one roundabout leg is near a distribution hub, e.g. parking areas of shopping centers, the entry traffic volumes will be particularly high in peak hours. This paper investigated a partial-metering based strategy to reduce traffic-related costs in a corridor. Specifically, the resulting traffic performance, energy, environmental and exposure impacts associated with access roundabouts were studied in an urban commercial area, namely: a) to characterize corridor operations in terms of link-specific travel time, fuel consumption, carbon dioxide and nitrogen oxides emissions, and noise costs; b) to propose an optimization model to minimize above outputs; and c) to demonstrate the model applicability under different traffic demand and directional splits combinations. Traffic, noise and vehicle dynamics data were collected from a corridor with roundabouts and signalized intersections near a commercial area of Guimarães, Portugal. Microscopic traffic and emission modeling platforms were used to model traffic operations and estimate pollutant emissions, respectively. Traffic noise was estimated with a semi-dynamical model. Link-based cost functions were developed based on the integrated modeling structure. Lastly, a Sequential quadratic programming type approach was applied to find optimal timing settings. The benefit of the partial-metering system, in terms of costs, could be up to 13% with observed traffic volumes. The efficiency of the proposed system increased as entering traffic at the metered approaches increased (~7% less costs). The findings let one to quantify metering benefits near shopping areas

MOBILIST - Mobiles Transport-Auskunft-System Mobi-As Schlussbericht

Available from TIB Hannover: F02B1299 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

DOM - Der Orientierte Mensch Schlussbericht 1 und 2

SIGLEAvailable from TIB Hannover: F03B1063 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Mobidrive questionnaires

This working papers provides a collection of the questionnaires as well as other forms used for the conduct of the Mobidrive travel survey. The documents are given in their original version complemented by a brief English translation

Flexible Transportkette 8: 'Beschaffung- und Distributionslogistik in der verarbeitenden Industrie' - Demonstrationsfeld Interaktive Fahrzeugeinsatzplanung im Gueterfernverkehr bei kooperativen Unternehmensmodellen Abschlussbericht

Available from TIB Hannover: F02B113+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Mobidrive - Dynamik und Routinen im Verkehrsverhalten - Pilotstudie Rhythmik. Abschlussbericht und Anhang A und B

Published in three volumesSIGLEAvailable from TIB Hannover: F01B1448: F01B1449: F01B1450 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman