When modeling sharing systems, both the search impedance and the perceived journey time (PJT) include additional impedance components.
- Sharing travel time
This time refers to the sharing system’s pure travel time which is multiplied by a constant coefficient and an attribute of the transport system. If the sharing system uses the same transport infrastructure as another PrT transport system, it will depend on the same transport supply and can thus be based on the PrT transport system’s calculation results. Travel times on links, (main) turns and connectors are transferred. There is a time limit for the search within sharing path legs (User Manual: Limiting the path leg time).
- Penalty for rental and return services
It reflects the higher expenses caused by the rental car pick-up and return services. The penalty is specified for each station and saved with the station data.
- Collecting and returning rental cars at/to zones (destinations)
If a rental car is collected or returned, fifty percent of the average dwell time will be added to the search impedance. This time is multiplied by a constant coefficient and an attribute of the transport system. The penalty is attributed to the search impedance only. The continuation of the rental agreement based on the tariff is included in the perceived journey time. This is why when modeling vehicle sharing, you should always include a time fare rate in search impedance.
A search that accounts for zones as destinations is only possible for station-based vehicle-sharing systems. These systems require the rental and return station to be identical.
