Research Article
Characteristics Analysis and Equilibrium Optimization of Mixed Traffic Flow considering Connected Automated and Human-Driven Vehicles
| Notations | Definitions |
| Sets | | Set of nodes | | Set of links | | Set of paths | | Set of vehicle types: type 1 denotes CAVs, type 2 denotes HDVs, type 3 denotes HDVs-I, type 4 denotes HDVs-II | | Set of origin-destination (OD) pairs | | Set of origin nodes and | | Set of destination nodes and |
| Parameters | | Index of link, | | Index of path, | | Index of vehicle types, | | Index of OD pairs, | | Link–path incidence that equals 1 if link belongs to path between OD pair and 0 otherwise. | | Capacity of link | | Length of link | | Market penetration of CAVs among all vehicles | | Market penetration of ATIS vehicles among human-driven vehicles |
| Variables | | Multiplier of travel demand growth between OD pair | | Basic travel demand between OD pair | | Basic travel demand of vehicle types between OD pair | | Traffic flow on link | | Traffic flow of vehicle types on link | | Traffic flow on path between OD pair | | Traffic flow of vehicle types on path between OD pair | | Travel time on link | | Actual travel time on path between OD pair , i.e. | | Marginal travel time on link |
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