Department / Institute: Istituto per la pianificazione del traffico e per sistemi di trasporto (IVT)

In: Transportmetrica B: Transport Dynamics. S.1-21. Mehr This paper studies traffic behaviour on one-way, two-way and two-way streets with prohibited left turns using three different methods; analytical formulations, static traffic assignment and microsimulation. While two-way networks result in shorter routes, one-way networks increase intersection throughput. Two-way networks without left Continua

In: Transportation Research Part C: Emerging Technologies, 77. S.257-274.  Mehr Recent years have seen a renewed interest in Variable Speed Limit (VSL) strategies, and their potential as a freeway metering mechanism or a homogenization scheme. This paper uses empirical data to examine both the macroscopic and microscopic effects Continua

In: Transportation Research Part C: Emerging Technologies, Volume 72, November 2016. S.109-129, ISSN 0968-090X. More This paper proposes an efficient signal control algorithm under the co-existence of conventional vehicles, connected vehicles and automated vehicles. Trajectories of the automated vehicles are modified to reduce delay and stops. Simulations show that both Continua

In: Journal of Advanced Transportation, 50 (4). S.406-420. PDF  More   An on-street parking maneuver often starts a temporary bottleneck, leading to additional delay endured by the following vehicles. If the maneuver occurs near a signalized intersection, the service rate of the intersection might be reduced. In this paper, a Continua

In: Transportation Research Part C: Emerging Technologies, 64. S.28-44. More The paper establishes the first real-time control algorithm for pre-signals. The algorithm combines multiple operation strategies at the intersection. It functions well with a wide range of input values and is robust to input errors. The real-time pre-signal minimizes person Continua

In: Accident Analysis & Prevention, 85. S.219-228.  Mehr One of the challenges in traffic safety analyses is the heterogeneous nature of safety data. The study suggests that latent class clustered regression approach is suitable for reducing heterogeneity and revealing important hidden relationships in traffic safety analyses.

In: Transportation Research part B: Methodological.  Mehr PDF The urban parking and traffic systems are essential components of the overall urban transportation structure. The interactions between them can be highly influential to their performance. Here, we propose a methodology to model macroscopically such interactions and evaluate their effects on Continua

In: Transportmetrica B: Transport Dynamics. DOI 10.1080/21680566.2015.1025892  Mehr The paper evaluates the trade-offs between loop detector data and floating car data for the real-time estimation of origin–destination matrices in small networks. Results are used to evaluate the trade-offs between loop detector coverage and the penetration rate of floating car Continua