service road
US /ˈsɜːr.vɪs ˌroʊd/
UK /ˈsɜːr.vɪs ˌroʊd/
1.
a road running parallel to a main road, giving access to houses, shops, or businesses along it
:
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Take the next exit and follow the service road to the mall.
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Parking is available on the service road behind the building.