Prequels (Traffic NO2 Overlay)
Prequel overlays can be linked to the Traffic NO2 Overlay to determine traffic intensities for calculations, instead of using roads and their Attributes.
| Name | Prequel | Underlying data | Unit | Range | No data | Description |
|---|---|---|---|---|---|---|
| Buses | BUS | Traffic NO2 Prequel | vehicles/h | 0 - max value | 0 | Amount of bus traffic in any given location. |
| Cars | CAR | Traffic NO2 Prequel | vehicles/h | 0 - max value | 0 | Amount of car traffic in any given location. |
| Trucks | TRUCK | Traffic NO2 Prequel | vehicles/h | 0 - max value | 0 | Amount of truck traffic in any given location. |
| Vans | VAN | Traffic NO2 Prequel | vehicles/h | 0 - max value | 0 | Amount of van traffic in any given location. |
Notes
- A Prequel with a single timeframe will mean that value applies to all hours of the day. A Prequel with multiple timeframes is assumed to have 24 timeframes, with each timeframe representing a single hour of the day.
- If a prequel is selected for a traffic type, the jam factor is still obtained from existing roads. The prequel only provides an alternative traffic volume for that type.