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Introducing a re-sampling methodology for the estimation of empirical macroscopic fundamental diagrams
(2018)2018 TRB Annual Meeting OnlineConference Paper -
Hetereogenous travel activity patterns in Japan
(2018)2018 TRB Annual Meeting OnlineConference Paper -
Approximative network partitioning for MFDs from stationary sensor data
(2018)Macroscopic fundamental diagrams (MFD) are typically estimated for sub-regions in cities, where the zoning conventionally follows the directive of homogeneity in the road network and traffic. Existing network partitioning algorithms fail to work for MFD estimation with stationary sensor data as their link speed and link density measurement are biased by the location of the sensor. However, in this paper, we present an approach for ...Conference Paper -
Modeling multi-modal traffic in cities
(2018)We propose a new functional form for the 3D-MFD. The 3D-MFD links the number of cars and buses in an urban network to the total travel production. The parameters of the functional form are derived from the structure and topology of the road and bus network. The physical interactions of vehicles are described by a single parameter. We apply the methodology to two empirical data sets from London and Zurich, and discuss policy relevant ...Conference Paper -
Evaluating London's congestion charge
(2018)The rationale of road-pricing schemes is to reduce the negative externalities of road traffic by increasing costs to decrease demand. Although in the transportation literature this is a well-acknowledged means of relieving cities from congestion, only few cities have introduced such schemes so far. One of the most notable examples in Europe is London’s congestion charge. Motorists entering London’s city center are required to pay a fixed ...Conference Paper -
A case study of Zurich’s two-layered perimeter control
(2018)This paper evaluates Zurich’s perimeter control with loop detector data from the entire city. We compare the speed indices and congestion levels within the controlled area and its surrounding areas using the concept of the macroscopic fundamental diagram (MFD). At times of heavy congestion, vehicles are prevented by two layers of control to enter the perimeter of the inner city. With the introduction of the concept of the MFD and the ...Conference Paper