she built a methodology identifying peoples needs using travel survey data including data on mobility patterns and peoples satisfaction with their trips in terms of travel time box a lower value indicates that peoples need for a certain activity eg access to employment school or hospital is not met due to long travel times related to poor transport provision by eliciting users unmet needs the indicator also served to identify the transport user groups that are particularly vulnerable due to limited accessibility to activities with of retirees assessing their satisfaction negatively analysis showed that retirees need to reach health facilities by public transport is largely unmet while of housewives feel their need to do daily shopping is unsatisfied