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it most quickly, at the Major Arterial intersections, followed by Minor Arterials, then Collectors. <br />More specifically, the intersections are prioritized so that major arterials will be the first <br />roadways to operate with temporary controls, followed by minor arterials. Nearly all traffic <br />signals on collector streets are where the collector intersects an arterial, so nearly all intersections <br />will be addressed by prioritizing the major and minor arterials. (Several intersections are <br />prioritized higher than they would otherwise be, in order to provide connections from the major <br />arterial network to Sacred Heart hospital.) <br />21.4 Opticom— Emergency Vehicles <br />The design of all traffic signals shall include emergency vehicle detection and pre - emption for all <br />travel directions. <br />2.1 APS Audible Pedestrian Signal (APD Audible Pedestrian Device) <br />All new actuated traffic signals shall include APS at all pedestrian crossings. <br />2.F.6 Transit Advantage <br />There are locations within the transportation system where efficient use and mobility of the local <br />transit system benefits from special traffic signal configuration and timing. When requested by <br />Lane Transit District (LTD), Traffic Operations will consider allowing a transit advantage. The <br />Traffic Engineer shall authorize in writing any transit advantage installation. <br />2.17.7 Signal Timing Criteria <br />Traffic signal timing is critical to the safe and efficient operation of the transportation system. <br />Timing shall comply with the standards established in the Institute of Transportation Engineers - <br />Traffic Control Devices Handbook. <br />The City has a mix of coordinated and free signal systems. Traffic Operations reserves the right <br />to evaluate modify timing to best fit the location and circumstance. <br />2.G Sign and Signal Visibility and Vision Clearance (APWA 31.10) <br />The Maintenance Division inspects street signs, traffic lights and intersections to ensure adequate <br />traffic visibility of control devices and vision clearance zones. Publicly owned trees that obstruct <br />the view of motorists are maintained by either the City's tree crew or the Traffic Operations crew <br />depending on the size of the vegetation removed. Property owners with privately owned trees or <br />other vegetation that obstructs a motorist's view are notified to abate the hazard. Under City <br />code, if the property owner does not comply, the City hires a contractor and bills the property <br />owner for the work to remove the obstruction. <br />Vision clearance is maintained for bicyclists and pedestrians. <br />Page 24 of 36 <br />Lest Revised: aft 0/08 <br />