Abstract
The spread of charging infrastructure (CIS) for battery electric vehicles is crucial for coping with the increasing number of electric vehicles. Therefore, the selection of ideal (fast-) charging locations determines acceptance, utilization and, thus, the economic viability of a single site or the whole charging network. The methodology of the Integrated Model Approach STELLA (STELLA is the acronym for the German term “STandortfindungsmodell für ELektrische LAdeinfrastruktur”) for site identification of CIS uses reliable methods of traffic modeling such as the classic four-step traffic modeling in a new context to enable statements regarding the positioning of CIS. Because only (electric) motorized individual traffic is of importance for CIS, the share of trips is calculated by differentiating the modal split between various transport groups. To estimate the public transport share in the model approach STELLA there are several factors used. One aspect is the accessibility of stops, which can be determined with accessibility radii one the one hand, and with network analyses on the other hand. The methods have been evaluated for the region of Nuremberg. Depending on the spatial characteristics there is a difference of up to 60% between the two methods in the area covered by public transport. Therefore, the network analysis leads to a more accurate estimation of the public transport share. The modal split determination is then implemented in the model approach STELLA, which is currently developed for a planning area covering the entire territory of the Federal Republic of Germany.
Highlights
A prerequisite for the spread of electromobility is the access to charging infrastructure (CIS)
The results of the detailed modal split analysis for public transport can be used in two ways: On the one hand, spatially differentiated public transport shares can be integrated into the model approach STELLA by means of specific analyzes of the public transport service
The presented spatial analysis of the public transport modal split estimation is included in the calculation of the traffic volume of the model approach STELLA
Summary
A prerequisite for the spread of electromobility is the access to charging infrastructure (CIS). In addition to CIS located in private areas, which is how currently 92% of electro mobile road users use it [1], CIS positioned in public areas is important for public perception, and for providing basic care and service in case of unplanned charging events. It is necessary to build publicly accessible charging points [2]. This is enforced by the European directive 2014/94/EU [3], which demands a charging infrastructure network covering the Union [3]. The results of the detailed modal split analysis for public transport can be used in two ways: On the one hand, spatially differentiated public transport shares can be integrated into the model approach STELLA by means of specific analyzes of the public transport service. Statements regarding the quality of service provided by public transport can be derived on basis of these data
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