11.3.3.1
If an ESU is one-way to normal traffic, the ESU_DIRECTION must be used. The ESU_DIRECTION indicates whether the allowable direction of traffic is from the start to the end of the ESU or vice-versa.
11.3.3.2
If the Street allows travel in both directions for all road users an ESU_DIRECTION = 1 must be used which means two-way traffic.
11.3.3.3
If there is a change between one-way and two-way in the middle of the ESU, then the ESU must be split at the change point.
11.3.3.4
If the one-way status of a Street is not known, then the one-way ESU_DIRECTION = 2 or 3 must not be used.
11.3.3.5
The one-way exemptions Record must be used to list types of vehicles and periodicity that are exempt from one-way restrictions.
11.3.3.6
One-way exemption Records must only be used if ESU_DIRECTION = 2 or 3.
11.3.3.7
ESU direction codes are transferred to GeoPlace within the data transfer file as a type 13 ESU Record. For further details, see Section 5.3.1 in the DTF current version. For details of the current version, see Related Documents