House of Assembly Fifty-Third Parliament, Second Session (53-2) 53 2 Parliament of South Australia House of Assembly published Estimates Replies O-Bahn O-Bahn In reply to Mr WINGARD House of Assembly Mitchell O-Bahn In reply to Mr WINGARD (Mitchell) (23 July 2015). (Estimates Committee A) The Hon. S.C. MULLIGHAN House of Assembly Lee Minister for Transport and Infrastructure Minister Assisting the Minister for Planning Minister Assisting the Minister for Housing and Urban Development O-Bahn The Hon. S.C. MULLIGHAN (Lee—Minister for Transport and Infrastructure, Minister Assisting the Minister for Planning, Minister Assisting the Minister for Housing and Urban Development): I have been advised of the following: A number of bus tests were conducted by the Department of Planning, Transport and Infrastructure in 2012 when the maximum speed of a vehicle on the O-Bahn track was reduced from 100 km/hr to 85 km/hr. These tests showed that there was an increase in the travel time along the whole 12km track of a maximum of 20 seconds. As buses are accelerating and decelerating when they enter and exit interchanges and at other points along the track, the reduction in speed makes a very small difference in overall travel time.