Threshold reports

Threshold reports simplify measurement in terms of defined policy or presentational goals. Thresholds that relate to these goals can be in time, distance and cost, number of people and scale of opportunities that can be reached. These reports can show the number or percentage of a population that can access a destination type within a specified time, cost or distance threshold. Alternatively they can show the travel time, cost or distance required to reach a defined set of opportunities (eg childcare, work and food shopping). Threshold reports are the most common and frequently used of indicators in accessibility planning because they link measuring techniques with defined goals. The destinations that can be accessed by different modes within the threshold can also be aggregated to produce results for a single origin or destination. Threshold reports use a simple yes–no approach to define whether a policy or other goal is met. A threshold report can answer a question ‘How many people can reach a doctor within 30 minutes of travel by public transport?’