Quality of route choice

The New Zealand accessibility methodology is currently based on shortest time-based route choice. However, it is known that the quality of a route using a particular mode influences whether a person chooses to use that route. For example, a busy arterial road with many heavy vehicles and no bicycle facility is less desirable for cyclists than a quiet back street. Higher levels of route quality are expected to influence accessibility.

The effect of quality is particularly pertinent for cyclists and pedestrians and to a lesser extent private vehicle travel.

With regard to cycle route quality, a methodology is the Abley Cycle Route-Choice Metric (ACRM) proposed by Rendall et al (2012). Regarding walking quality, a possible methodology is that proposed by Abley and Turner (2011) although further work would be required to apply the level of service outputs to route weightings.