Research Article
A Short Turning Strategy for Train Scheduling Optimization in an Urban Rail Transit Line: The Case of Beijing Subway Line 4
Table 1
Summary of the relevant studies with short turning train scheduling.
| Publication | Objective | Decision variables | Solution approach |
| Wang [26] | minimize the number of trains | short turning service headway and cycles | fuzzy optimization | Wang and Ni [23] | minimize the passenger travel cost and enterprise operation cost | short turning offsets, turn back station | ideal point method | Canca et al. [21] | reduce the passenger waiting time | turn back points location, departure and arrival times, short turning offsets | MILP | Bai et al. [24] | minimize the number of trains | turn back point location, headway, turning times | enumeration method | Ghaemi et al. [22] | minimize the delays and canceled services after blockage | short turning stations routes and platform tracks | MILP |
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