The local roads (as opposed to the trunk roads) are managed and maintained by the councils under enabling legislation. The councils have the power to restrict traffic on roads to protect the network but, through the partnership approach of the Timber Transport Forum, are encouraged to maintain access for timber haulage.
The Agreed Routes Maps prepared by timber transport groups, direct timber traffic onto the most suitable roads, highlight where the capacity of the roads is limiting and initiate a dialogue between those planning or undertaking timber haulage and the local authority roads or highways department.
Sustaining weak roads under forestry traffic can involve the timber industry agreeing to voluntary limitations on road use. Typically this might mean, hauling in drier months or drier weather, extending the harvesting period to spread and reduce the frequency of traffic movements, reducing the frequency of lorry traffic, reducing speed, using lower impact vehicles and timing haulage to avoid disruption to other road users.
Additional and larger passing place may be required to allow higher levels of lorry traffic on single tracked roads. On more fragile roads, or roads with multiple parties hauling timber, a formal Timber Transport Management Plan may be the appropriate way forward.