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I <br />I <br />I <br /> <br /> I <br /> I <br /> ! <br /> I <br /> I <br /> I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />CASE # / <br /> <br />REQUEST FOR STOP SIGNS AT VARIOUS LOCATIONS <br /> By: Steve Jankowski, City Engineer <br /> <br />Background: <br /> <br />This case is intended to examine and make recommendations for the placement of stop. signs, <br />which have been requested at three locations. Attached are letters requesting the signage, along <br />with a map of each location. <br /> <br />144th LANE AND TUNGSTEN WAY <br /> <br />Site Distance: The intersection was viewed for site distance from all four approaches. Although <br />Tungsten Street has a moderate downward grade proceeding to the north, it was observed that the <br />limiting factor for sight distance are the home on all four comers of the intersection. This leads <br />to the conclusion that the sight distances are no poorer at this intersection than any randomly <br />chosen intersection in the sewer and water district which have similar structure setbacks. <br /> <br />Accident History.; A review of the accident history for the five year period, including 1993 <br />through 1997, shows one accident at this intersection which occurred in 1995. This accident <br />involved only a single vehicle, which lef~ the roadway close to the intersection. It was not an <br />accident, which resulted from failure to yield the proper right-of-way. <br /> <br />Traffic' Courlt~; One function of a stop sign is to assign right-of-way to the main street over <br />lesser-traveled streets. The petitioner's letter points out that the primary road is not clear. A <br />traffic count showed only 15 vehicles in a one-hour period during the late afternoon, from 4:45 <br />p.m. to 5:45 p.m.. Therefore, the traffic differential between roads, if any, is unknown. <br /> <br />Speed Assessment: The petitioner's letter references high speed through the intersection. Stop <br />signs have been shown to be ineffective for speed control for a distance of between 100 to 200 <br />feet from the intersection, and tend to cause mid-block speeds to increase. <br /> <br />WACO AND Nv <br /> 142... LANE <br /> <br />Site Distance: The sight distance is reasonably good fi-om all approaches. <br /> <br />Accident History.: A review of the five year accident history of this intersection, between June 1, <br />1993 and December 31, 1997, shows two accidents. These two accidents occurred in 1993 and <br />1994. The two existing stop signs were placed in 1996. <br /> <br />G:lusers~City Shared FiI¢[COUNCILC~Stop Signs $-18-99. doc 05/14/99 <br /> <br /> <br />