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DEC 15 1992 <br />BQUK52F Ur <br />2. Traffic Volume: <br />Approach volumes at the subject intersection are presented <br />below. Volumes are low for roadway classification (Oslo <br />Road -arterial, 82nd Avenue -primary ccllector). _ <br />Existing Intersection Volume <br />Approach ADT7 Peak Hour Volume (K-) <br />82nd Ave. southbound 350 38 <br />Oslo Rd. eastbound 100 5 <br />Oslo Rd. westbound 450 49 <br />Turning movements primarily (650 of entering volume) involve <br />southbound left -turning and westbound right -turning (see <br />attached Turning Movement count). <br />3: Accident History: <br />Research into traffic accident files revealed no collisions <br />occuring during the past 21 months (January 1, 1981 - <br />September 30, 1982). <br />4. Traffic Control: <br />The subject intersection is controlled by multi -way STOP <br />signs with an aerial flashing beacon supplemented by hazard <br />identification beacons on the southbound and westbound <br />approaches. Justification for these devices was investigated. <br />Multi -way STOP analysis based on provisions in the Manual <br />On Uniform Traffic Control Devices revealed that such control <br />is not warranted. Existing traffic volumes are approximately <br />10% of volumes required to satisfy the multi -way STOP warrant. <br />The aerial flashing beacon does not meet current indication <br />display standards with a single, instead of dual, lens display <br />per approach. The hazard identification beacons do not _ <br />-appear to be warranted due to the lack of accident history -` <br />and presence of an aerial beacon. <br />Alternatives <br />A. Maintain existing intersection traffic control. This <br />alternative is not warranted. <br />B. Revise intersection control to stop the 82nd Avenue approach <br />only. <br />RECOMMENDATION <br />Due to insufficient traffic volume and lack of accident history, <br />Alternative B is recommended. In addition,the following activ- <br />ities are recommended: <br />1. Upgrade the aerial: flashing beacon to include to lens <br />displays per approach; <br />2. Remove the hazard identification beacons; <br />3. Upgrade pavement markings, warning and guidance signage <br />as required to implement Alternative B and to current <br />standards; <br />4. Abandon maintenance of the "rumble strips" on 82nd Avenue <br />due to their non -official traffic control device desig- <br />nation. <br />