Trails are generally unsealed paths that can be acceptable to some people cycling in some circumstances, particularly for recreation or touring (for example the New Zealand Cycle Trail). Trails are often shared with pedestrians. Trails will rarely be a component of an urban cycle network, but there may be some cases where they are appropriate. Whenever a trail is considered, the limitations it has on both the pedestrians and cyclists who will want to use it, compared to a sealed shared path, should be taken into consideration.
The NZ Cycle Trail Design Guide(external link) provides comprehensive information on the planning, design and construction of cycle trails that make up the New Zealand Cycle Trail (NZCT). These principles can be applied when designing other trails as part of an urban cycle network.