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When is a bus full?
(2013)Arbeitsberichte Verkehrs- und RaumplanungCrowding on buses, trams and trains leads to a deteriorated performance of the public transport system through increased waiting times and vehicle bunching, and is naturally resented by its customers. In the past, i.e. in the absence of smart card ticketing system, crowding was difficult to measure in any detail and therefore to trace its impact on user behaviour, e.g. trip making, route and departure time choice by user characteristics. ...Working Paper -
Estimation of car-sharing demand using an activity-based microsimulation approach
(2010)Arbeitsberichte Verkehrs- und RaumplanungWorking Paper -
Exploring choice set generation approaches for public transport connection choice
(2014)Arbeitsberichte Verkehrs- und RaumplanungThis technical working paper documents the choice set generation algorithms for public transport connection choice in their state of development in August 2014. The choice set generation methods have been developed to generate the non-chosen alternatives for public transport trips that have been observed through GPS traces recorded either by dedicated GPS devices or by smart-phones. The choice set generation approaches that we have developed ...Working Paper -
Efficiency of choice set generation methods for bicycle routes
(2012)Arbeitsberichte Verkehrs- und RaumplanungThe current study analyses the efficiency of choice set generation methods for bicycle routes and proposes the extension of cost functions to bicycle-oriented factors not limited to distance and time. Three choice set generation methods for route choice were examined in their ability to generate relevant and heterogeneous routes: doubly stochastic generation function, breadth first search on link elimination, and branch & bound algorithm. ...Working Paper -
Road accessibility of Germany and Switzerland 1970-2007
(2013)Arbeitsberichte Verkehrs- und RaumplanungThis study adopts the basic potential approach of accessibility and investigates it at the municipal level of resolution over a long time period for Germany and Switzerland. The availability of his-torical data shaped the scope, geographical bounds and historical timeline of this study. Generat-ing a historically and regionally comparable data set turned out to be a challenge. The accessibil-ity combines the quality of the transport network ...Working Paper -
A general framework for multi-modal macroscopic fundamental diagrams (MFD)
(2019)Arbeitsberichte Verkehrs- und RaumplanungCar traffic streams in urban networks are rarely homogeneous and usually contain some disturbances by other transport modes of different physical characteristics, e.g. bicycles or buses. Inevitably, these interactions decrease the network’s capacity and performance, but, so far, no methodology exists to assess the local interaction effects on the network level as for instance described in the macroscopic fundamental diagram (MFD). This ...Working Paper -
Räumliche Dynamik des Pendelverkehrs in Deutschland und der Schweiz
(2010)Arbeitsberichte Verkehrs- und RaumplanungIt is well known among European transport researchers that cross-municipality commuting increased constantly over the years. Less and less people live and work within the same municipality. The average distances of commuting rose markedly through recent decades. This paper explores this trend in new ways focusing on the commuting patterns of two agglomerations in Germany and Switzerland: Munich and Zurich. The analysis is based on data ...Working Paper -
Variations and co-variations in discrete choice models
(2010)Arbeitsberichte Verkehrs- und RaumplanungThis study introduces an extended version of a standard multilevel cross-classified logit model which takes co-variations into account, i.e., variations jointly caused by two or more unobserved factors. Whilst focusing on mode choice behavior, this study deals with four different types of variation: spatial variations, inter-individual variations, intra-individual variations and co-variations between inter-individual and spatial variations. ...Working Paper -
Verkehrsverhalten und Projekte
(2010)Arbeitsberichte Verkehrs- und RaumplanungThis paper presents the initial analyses of a new survey conducted as part of a regular multitopic face-to-face survey UNIVOX organised by the Swiss market research firm GfS, Zürich. The focus here is travel behaviour generally, and a new issue for travel behaviour research: projects, organising daily life through their longer time horizons and their higher importance for the travellers. The descriptives and a first exploratory modelling ...Working Paper -
Traffic problems in towns
(2017)Arbeitsberichte Verkehrs- und RaumplanungTravel behavior in urban areas has been widely analyzed from the demand side, while the extent to which the infrastructure imposes constraints on such travel behavior and leads to delays and congestion has almost never been studied. For car-based transportation, the recently developed theory of the macroscopic fundamental diagram (MFD) describes the relationship between the accumulation of vehicles and their trip ending rate as a function ...Working Paper