Table 6.
Descriptions of data attributes collected from CCTV cameras.
| Attributes | Description |
|---|---|
| Time | Starting time of the 5 second interval in which the instance is collected (24 hours format). |
| [N/E/W/S] 1 | Number of vehicles collected from the first sensor on the link approaching the intersection from corresponding directions [N: north, E: east, W: west, S: south]. |
| [N/E/W/S] 2 | Number of vehicles collected from the second sensor on the link approaching the intersection from corresponding directions [N: north, E: east, W: west, S: south]. |
| [N/E/W/S] 3 | Number of vehicles collected from the third sensor on the link approaching the intersection from corresponding directions [N: north, E: east, W: west, S: south]. |
| [N/E/W/S] 4 | Number of vehicles collected from the fourth sensor on the link approaching the intersection from corresponding directions [N: north, E: east, W: west, S: south](the fourth sensor exists only on Link 5). |