Table 3 Trajectory data attributes.
From: City-scale Vehicle Trajectory Data from Traffic Camera Videos
Meaning | Example | Notes | |
|---|---|---|---|
VehicleID | Vehicle Identifier | 0 | An enumerating index generated during the vehicle clustering rather than car plate. |
TripID | Index of trip of the vehicle | 0 | A vehicle may have multiple trips in a day, so “VehicleID” is not enough to uniquely identify a trajectory. |
Points | A series of trajectory points. Each point is “NodeID-Time”. Points are divided by “_”. | 1-36000_3-36300_6-36900 | “NodeID” is a intersection corresponding to road network. Exactly one road segment existing between two adjacent nodes is guaranteed. “Time” is represented by seconds starting from the beginning of the day. |
DepartureTime | Departure time of the trajecotry | 36000 | “Time” is represented by seconds starting from the beginning of the day. |
Duration | Time duration of the trajectory | 900 | In seconds |
Length | Travel length of the trajectory | 5000 | In meters |
