Reducing railway delays, their variability and propagation, considering operations as stochastic processes, explicitly considering current and possible future delays The goal of this project is to develop a set of interconnected algorithmic approaches that improve railway operations by real-time traffic control, reducing delays, their variability, and their propagation More
You missed this NSL colloquium on 14 May? The film recording is now online! Logistics and mobility of goods is facing relevant substantial challenges, which are mostly invisible to users, differently from the challenges of personal mobility, such as delays, traffic jams, etc, which we witness daily. This More
Das Forschungsprojekt untersucht systematisch Innovationen, welche zur Verlagerung zusätzlicher Verkehre von der Strasse auf den Kombinierten Verkehr beitragen können, indem sie heutige Verlagerungshemmnisse reduzieren oder beseitigen. Allerdings reicht das Verlagerungspotenzial aller untersuchten Innovationen nicht aus, um die für den Aufbau neuer Relationen erforderlichen gebündelten Mengen zu erreichen. Forschungsprojekt More
Soon when crossing the street we might need to also look towards the sky! Researchers and practitioners alike are starting to invest resources into the investigation of potential impacts of flying car systems on the transportation. Will the flying car help reduce congestion on roads? Will it bring More
Published by the Network Design Lab. Information Nothing in cities makes sense except in the light of accessibility. Transport cannot be understood without reference to the location of activities (land use), and vice versa. However, for a variety of historical reasons, transport and land use are quite divorced More
The platooning of trucks has been considered in many studies as a potential approach to reduce some of the negative effects caused by trucking on the highways. A platoon of trucks is formed by decreasing the spacing between the trucks and adjusting their speeds at the same time. More
In urban environments, where buses and cars operate in mixed fashion, bus delays can be exacerbated at signalized intersections due to the interactions with cars. This research will investigate the use of additional signals to provide priority to buses at signalized intersections, while minimizing the negative effects to More
In the last decades, cities around the world have started to reduce speed limits in both residential areas and city centers. In Switzerland, for example, more than 700 districts and municipalities have streets and areas with 30 km/h regulations, and there have been initiatives to extend those to More
To understand the physics of urban mobility, traffic dynamics of multimodal urban networks need to be analyzed under many different scenarios, including various network properties. To this end, an aggregated model for multimodal systems, following the concept of the three-dimensional bi-modal macroscopic fundamental diagram (3D-MFD), can be used More
The development in connected and automated vehicles provides more flexibility in the monitoring and control of traffic systems. Equipped with communication systems and various sensors, connected and automated vehicles can communicate with the infrastructure to report real-time information, such as location, speed, etc. Moreover, the automated driving system More
Anthropogene Netzwerke, bestehend aus Siedlungen und Strassen, sind oft eine Bedrohung für ökologische Netzwerke. Um dafür zu sorgen, dass die Siedlungsentwickelung und die Zunahme des Verkehrs möglichst wenig negative Einflüsse auf die Biodiversität haben, sollen die Bedürfnisse zwischen anthropogenen und ökologischen Netzwerken untersucht und daraus Empfehlungen für die More
In: Transportation Cruising-for-parking is a common phenomenon in urban areas worldwide. Properly understanding and mitigating cruising can reduce travel times, alleviate traffic congestion, and improve the local environment. In this paper, we present a case study of the city of Zurich, using a macroscopic model to analyze the current More
In: Transportation Research Part B, Vol. 104, 638-666. Doi: 10.1016/j.trb.2017.05.008 Reducing delays in high speed railways requires searching for efficient traffic management actions (dynamic speed updates, changing train sequence) with feasible speeds and headways, under the given signaling/safety system. We use an alternative graph model in a commercial MILP More
Paper presented at the 6th Symposium of the European Association for Research in Transportation (hEART 2017), Haifa, September 2017. In the present paper a modeling approach to address the issue of mean speed prediction on a large scale network is presented. Methodologically, we exploit the family of spatial More
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 More
Arbeitsberichte Verkehrs- und Raumplanung, 1270. Zurich: IVT, ETH Zurich. Mehr For the city of Zurich a fleet of autonomous taxis is simulated and controlled by different dispatching and rebalancing algorithms. The operation scheme with rebalancing is able to minimize waiting times of the service. Although a considerable amount of empty More
Prof. Dr. Francesco Corman is continuing the research direction in transport system at the post left vacant by Prof. Dr. Ulrich Weidmann, who is now Vice President of Human Resources and Infrastructure of the ETH Zurich. The Italian born travel aficionado will direct research towards improving transport systems operations based More
The increasing competitiveness amongst transport modes has recently lead rail operators to start collecting microscopic data on energy consumptions. Main aim is to analyze and optimize energy efficiency during operation. It is an incredible opportunity for researchers to access to a huge amount of data for the development More
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 More
Paper presented at the 17th Swiss Transport Research Conference (STRC 2017), Ascona, Switzerland, May 17-19. PDF This paper takes a look at two possible scenarios of the impact of autonomous vehicles on pedestrian transport: a future streetscape perfectly suited for walking, with drastically reduced noise levels and exhaust emissions, More
Arbeitsberichte Verkehrs- und Raumplanung, 1225. Zurich: IVT, ETH Zurich. PDF Diese Publikation ist ein erster Versuch, die Kostenstrukturen etablierter und künftiger, auf autonomen Fahrzeugen basierenden Mobilitätsangeboten zu ermitteln, um so auf ihre jeweilige Rolle zu schliessen. Teils entgegen mancher Voraussagen lässt sich weiterhin ein substantieller Anteil an privatem More
Die vierte industrielle Revolution, das heisst die Automatisierung der Arbeitswelt, rollt über uns hinweg. Auch und gerade im Transportsektor sind die Änderungen spürbar und noch lange nicht abgeschlossen. Schon heute sind neue Akteure im Markt, die mit Digitalisierung und Automatisierung traditionelle Strukturen unter Druck bringen – das vermutlich More
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 More
In: Transportation Research Part C, Emerging Technologies 71. S.382-405. More This paper reviews and classifies the traffic optimisation schemes of current mainline railway into two groups: improve efficiency of traffic management by providing resolutions for traffic conflicts; or improve trains’ driving behaviour by providing driver assistance or introducing train More
In: Transportation Research Part C, Emerging Technologies 71. S.382-405. More This paper reviews and classifies the traffic optimisation schemes of current mainline railway into two groups: improve efficiency of traffic management by providing resolutions for traffic conflicts; or improve trains’ driving behaviour by providing driver assistance or introducing train More
Arbeitsberichte Verkehrs- und Raumplanung, 1177. Zürich: IVT, ETH Zürich. PDF More Autonomous vehicles are expected to offer higher comfort of traveling at lower prices whilst increasing road capacity. Using the Swiss national transport model, this research simulates the impact of autonomous vehicles on accessibility. The results show substantial impacts favoring urban sprawl More
Dissertation, IVT-Schriftenreihe Nr. 175. In an increasingly intertwined world, airports are the link between local ground and global air transport. Many have grown beyond that function and have become commercial, business and leisure centres, as well as ground transport interchanges. This research showed that not only airport operators More
ETR-Swiss Spezial. Hamburg: DVV Media Group. Mehr Die Sonderausgabe von ETR-Swiss vereint Artikel zu Entstehungsgeschichte, Planung, Bau, Bahntechnik und Betrieb der NEAT-Projekte und wagt einen Ausblick auf die Perspektiven, welche sie für Personen- und Güterverkehr schaffen.
Paper to be presented at the 23rd EIRASS conference on Recent Advances in Retailing and Service Strategies, Edinburgh, July 2016. More The paper aims at explaining the choice between online and in-store shopping, applying an integrated choice and latent variable modeling approach. An increased acceptance level of online shopping More
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 More
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 More
Forschungsprojekt im Rahmen der COST Action TU1103: Operation and safety of tramways in interaction with public space. IVT-Schriftenreihe Nr. 174. Mehr Die Studie fasst den Stand des Wissens zur Sicherheit von Schweizer Tramsystemen im Mischverkehr zusammen. Sie beschreibt relevante regulatorische Aspekte, analysiert die aktuelle Situation der Tramsicherheit in More
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.
Paper to be presented at the 95th Annual Meeting of the Transportation Research Board, Washington, D.C., January 2016. Mehr If Autonomous Vehicles (AV) are used predominantly as shared vehicles, they promise a reduction of the required total fleet size. Using a simulation approach, this paper shows that – given certain More
Dissertation, IVT-Schriftenreihe Nr. 171. Mehr Die Dissertation entwickelt ausgehend von den fundamentalen Eigenschaften eines Eisenbahnsystems eine Methode für die allgemeingültige Beschreibung von Eisenbahnbetriebsprozessen. Dadurch ist es möglich, unabhängig von technischen Realisierungsformen und einem historisch gewachsenen Prozessverständnis, Regeln zu definieren, mit denen Zugfahrten sicher und zuverlässig durchgeführt werden können.
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 More
Schlussbericht an SBB Lab, St. Gallen. Bern und Zürich: IVT, ETH Zürich und Ecoplan. Mehr Mit dieser Studie wurden zum ersten Mal für die Schweiz die Agglomerationseffekte (wider economic benefits) quantifiziert und räumlich analysiert. Eine Verbesserung der ÖV-Erreichbarkeit um 100 Prozent führt zu einer Produktivitätssteigerung von durchschnittlich 1 bis More
Ashgate, Surray (UK). Mehr Leisure travel is increasing in importance and is more complex and variable than work-related travel. Providing an overview of selected exemplary studies, this volume addresses the overlap between transport planning and methods of social network analysis; applied methods of social network analysis and related More
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 More
In: Transportation Research Record: Journal of the Transportation Research Board (accepted or in press). More This paper analyses traffic performance on an abstract grid network with different street configurations using the Network Exit Function (NEF) – an aggregate relationship between trip-completion rate and the number of vehicles circulating in a network.