Barricades would have to be put up before 7:00 a.m., changed twice during the day and removed after 6:00 Peme Qur Contract provisions would require a minimum of two hours overtime both morning and evening for every day as long as the temporary bridge is in place. This would be an onerous cost to the City. Barricades can be knocked out of the way or vandalized and there is no guarantee that they would remain in place every day at the times that they are Supposed to be in place. -This increases the hazard that vehicles might enter the road in the wrong direction at the wrong time. The closure of Pitt River Road in one direction morning and evening eliminates its use by buses during that period of time. Highways have specifically designed the structure to carry the weight of buses on request from the Transit Company. The suggested one-way system favors traffic leaving the City rather than those entering the City to work here. At least in the west—bound direction, the traffic would not be able to take full advantage of a one-way bridge anyway because of the signal at the Lougheed Highway which restricts traffic to a short part of every two-minute cycle. It has been mentioned that the Tunnel and the Lions Gate Bridge are able to effectively reverse the direction of a traffic lane several times per day. I would point out that these uses of reversal lanes don't eliminate the opposite direction of traffic but Simply reduce the number of lanes which are available to the opposite direction. That is an entirely different situation than whet we are talking about. Furthermore, these two uses of reversal lanes depend heavily on the use of lane traffic Signals and, in the case of the Tunnel, the use of lane dividing posts which are placed and removed by Highways Crews. As part of the installation of the Bailey bridge the Department of Highways is installing traffic signals at the bridge. These will be sophisticated signals which will be timed in such a way that the peak traffic direction gets the longest part of each signal cycle. There is no question that there will be delays to traffic using this route because of the clearance time for the signals. However, some delay has to be expected when a double lane bridge is replaced by a single lane bridge. These delays will probably be no worse that the delays which would otherwise be experienced by those vehicles which must reroute around the City if the bridge operates as a one-way bridge. Although there is a predominant peak 15