|
| Notations | | Units of measurement |
|
| Sets | | |
| Set of single transportation modes | |
| Set of combination modes | |
| Set of subgraph nodes | |
| Set of subgraph links | |
| Set of routes connecting OD pair in mode , , | |
| Set of routes connecting OD pair in mode , , | |
| Set of OD pairs | |
|
| Parameters | | |
| Constant parameter | |
| Constant parameter | |
| Pre-disaster capacity of link in mode , , | veh/h |
| Length of link in mode , , | km |
| Free-flow travel time of link in mode , , | min |
| Travel demand between OD pair , | veh/h |
|
| Decision variables | | |
| Travel demand between OD pair in mode , , | veh/h |
| Travel demand between OD pair in mode , , | veh/h |
| Post-disaster traffic flow of link in mode , , | veh/h |
| Post-disaster travel time of link in mode , , | min |
| Traffic flow on path between in mode , , | veh/h |
| Traffic flow on path between in mode , , | veh/h |
| Post-disaster capacity of link in mode , , | veh/h |
| Pre-disaster total travel time of transportation system | min |
| Post-disaster total travel time of transportation system | min |
| Pre-disaster total CO emissions of transportation system | g/h |
| Post-disaster total CO emissions of transportation system | g/h |
| , if link is not completely damaged; otherwise | |
| , if link belongs to path in mode ; otherwise | |
| , if link belongs to path in mode ; otherwise | |
|
