Research Article
Fixed-Route vs. Demand-Responsive Transport Feeder Services: An Exploratory Study Using an Agent-Based Model
Table 1
Description of the user-related output indicators.
| Indicator | Abbreviation | Description/formulation |
| #Users | NU | Total number of travellers generated during the simulation | % Walking Users | WLK | Percentage of users who do not request for the feeder service and walk to/from the terminal | % Accepted Passengers | ACP | Percentage of travellers using the feeder service | % Rejected Requests | REJ | Percentage of travellers whose trip request was rejected | % Delayed Passengers | DEL | Percentage of users who are delayed beyond the time windows | Avg pretrip time [s] | TPT | Average time that elapses between when a user makes the trip request (and is accepted) and starts walking to the stop | Avg walking time [s] | TWK | Average time for a user of the feeder service walking from the origin to the stop or from the stop to the destination | Avg waiting time [s] | TWT | Average time that a traveller waits at the stop for the vehicle | Avg ride time [s] | TRD | Average time that a passenger spends on board a vehicle | Avg total travel time [s] | T | Average total travel time, which is the sum of the following components: T = TWK + TWT + TRD | Rejection penalty [s] | Trej | Total walking time related to rejected travellers divided by the total number of passengers. | Avg time stretch | STR | Average ratio, for all passengers, between T and the sum of the ride and walking time if using the shortest path (no waiting time). | Avg disutility [min] | U | As defined in [18], it is the weighted sum of TWK, TWT, and TRD considering the weighting coefficients of equation (16) |
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Only for the DRF service. |