TRRL research in Northampton, United Kingdom (Tunbridge, 1981) did show however that on longer journeys there was a response among car commuters to switch to works buses for cost reasons.
TRRL forskning i Northampton, United Kingdom (Tunbridge, 1981) viste imidlertid, at på længere rejser var der en reaktion blandt bilpendlere, som af økonomiske grunde gik over til fabriksbusser.