AgdaPkt 2010-10-11 - Laserfiche WebLink

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6.3A Page 6 3. When the highest 8-hour approach volume (total of both approaches) on the minor street is greater than 30%of the total volume on all approaches for the same 8 hours, and the total 8-hour approach volume for all approaches averages at least 250 vehicles per hour, and no other stop sign or traffic signal on the major street is located within 800 feet; 4. When 3 or more accidents of types correctable by all-way stop control have occurred at the intersection within a recent 12-month period; for intersections within 800 feet of a school (K-12),the threshold is 2 or more accidents; 5. When land uses within 800 feet of the intersection generate 40 or more pedestrians crossing the major street during one hour on a typical weekday, and no preferable crossing point(as determined by the Traffic Engineer) is located within 800 feet; 6. Sight-distance on vehicular or pedestrian crossing approaches is less than 150 feet; Other non-engineering criteria as adopted by the City Council on a case-by-case 7. g g P basis; for example, a nearby school, playground, park, senior center,public facility, or other land use generating pedestrian or bicycle activity that merits additional protection from vehicle traffic; And B. An engineering study performed to evaluate conformance to these warrants has determined no alternative measures are more appropriate to address the identified traffic concerns, and that installation of all-way stops is compatible with the overall traffic considerations for the area. For two-way stops(and one-way stops on streets terminating at an intersection)the warrants in the Traffic Manual apply on residential streets. Advantages/Other Considerations: Readily understood. Can be installed quickly and inexpensively. Ineffective as speed control device except within 200 feet of intersection(where it also has the undesired effect of increasing traffic noise). May have some effect on midblock speeds of the very fastest drivers, while not affecting midblock speeds of the vast majority of drivers. Ineffective as a traffic diversion device except where travel time using the short-cut route through the neighborhood offers only a small advantage over the travel time using the more appropriate route. Alternate Devices: For right of way control: yield sign,traffic signal,occasionally circles. For speed control: traffic circle, undulations, enforcement preferable. Diverters, semi-diverters, cul-de-sacs, median barriers, turn prohibitions and channelizations are preferable as diversion devices. Cost(Typical): $500 per intersection for 2-way STOP; $1000 per intersection for 4-way.