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This paper describes a research project conducted in conjunction with the Hanauer Strasenbahn GmbH (HSB), serving as urban operator of public bus transportation in the city of Hanau, and with the Hanau Infrastuktur Service (HIS), operating the garbage collection trucks in the same city. The integration of vehicles powered by alternative forms of fuel such as batteries or fuel cells instead of combustion engines into bus and truck fleets imposes new challenges on regional or urban fleet operators like HSB and HIS. Issues about an appropriate mix of different types of fuel in the fleet, around applicable refuelling concepts, and around consequences for the infrastructure in (existing) depots are arising. Furthermore, the vehicle scheduling and the tour planning might be impacted by the varying range of vehicle types using different fuel. This challenge becomes even harder in heterogeneous fleets. The objective of the project was to develop digital twins for the vehicle operation of the HSB and the HIS and to use these twins to assess future scenarios of fleets composed of differently powered vehicle types. The paper describes the as-is situation at HSB and HIS, the development of the digital models and provides some results. |
