7.3.7.1
If a service station is not accessed directly from a Motorway, for example if it accessed from a Roundabout at a road junction which is not subject to Motorway regulations, then Motorway conventions do not apply to the slip road leading to the service station. For example, Tamworth Services at junction 10 of the M42.
7.3.7.2
If a service station is accessed directly from a Motorway, separate USRNs must be created for the slip Roads leading to and from the service station. These are known as the on and off-slip Roads.
7.3.7.3
The off-slip Road is that which leaves the Motorway and enters the service station.
7.3.7.4
The on-slip Road is that which leaves the service station and joins the Motorway.
7.3.7.5
The type 3 Street for the Motorway must include only the parts of slip Roads which are subject to Motorway regulations.
7.3.7.6
If the on-slip Road and the off-slip Road connect, forming a through route and the service area is accessed from that through route, then the off-slip Road can be extended to meet the on-slip Road to form a continuous route. For example, Leigh Delamere services between junctions 17 and 18 on the M4 (westbound). Enter part Road ASD for the section not subject to Motorway regulations.
7.3.7.7
If an LHA has an internal business need to create a type 2 Street for the main Road through a service station, then this may be created. The type 2 Street is not a Highway and the following rules apply:
- The type 2 Street must be linked to the off-slip Road at the point where Motorway regulations stop.
- The type 2 Street must be linked to the on-slip Road at the point where Motorway regulations start.
- The type 2 Street must have Private Street ASD type 61 Interest and type 62 Construction Records.
7.3.7.8
The following are not within the scope of the NSG:
- Minor Roads within service stations.
- Car parks within service stations.
- Paths within service stations.
7.3.7.9
Service station Streets are not Highways. For the rules, which apply to service stations, see Section 7.3.12.
7.3.7.10
If a service station is within two LHA Authorities or if a service station is within a different LHA from the Motorway which it serves, then contact GeoPlace for advice before entering data.