Road-Network Conditions
Table of Contents
METROPOLIS2 returns three files describing the road-network conditions:
net_cond_exp_edge_ttfs.parquet(ornet_cond_exp_edge_ttfs.csv): expected road-network conditions for the last iteration.net_cond_next_exp_edge_ttfs.parquet(ornet_cond_next_exp_edge_ttfs.csv): expected road-network conditions for the iteration after the last iteration.net_cond_sim_edge_ttfs.parquet(ornet_cond_sim_edge_ttfs.csv): simulated road-network conditions during the last iteration.
The road-network conditions are represented as a piecewise-linear travel-time function for each
vehicle type and each edge of the road network.
The output files report the breakpoints (x, y) of these piecewise-linear travel-time functions,
where the x value corresponds to the departure time and the y value corresponds to the travel
time.
The three files follow the same format described in the table below.
| Column | Data type | Nullable | Description |
|---|---|---|---|
vehicle_id | Integer | No | Identifier of the vehicle type (given in the input files). |
edge_id | Integer | No | Identifier of the edge (given in the input files). |
departure_time | Float | No | Departure time of the breakpoint, in number of seconds after midnight. |
travel_time | Float | No | Travel time of the breakpoint, in number of seconds after midnight. |