Revealed-Preference Evidence Against Valuing Reliability

The literature shows that, when asked to state their preference for a route, travellers will select more reliable ones ceteris paribus. But this assumes that semantic information about reliability is available to travellers and acted upon. This finding compares revealed preference route choices with a variety of reliability measures. In contrast to previously-published stated-preference results, real choices revealed by the same respondents do not show the same significance on variables measuring reliability. This implies that the widely accepted value of reliability may be inflated by hypothetical bias and/or attribute non-attendanc