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MOUNTAIN HOUSE NEIGHBORHOOD"F"PROJECT INITIAL STUDY d. Substantially increase hazards due to a design feature(e.g., sharp curves or dangerous intersections)or incompatible uses(e.g.,farm equipment)? PedestrianNehicle Conflicts The Master Plan for the Mountain House Community stresses design guidelines that require an extensive network of pedestrian and bicycle facilities. A review of the preliminary site plan for the school and park sites at the western end of Wickland Crossing found that the pedestrian corridors between the adjacent residential areas and the school do not line up. Further, no traffic control for these pedestrian crossings is indicated on the preliminary plan, but would be required as standard conditions of approval. Thus, the potential impacts related to pedestrian safety are considered less than significant and thereby will be the subject of standard conditions of approval and specialized conditions of approval to address midblock crossings. In the November 1999 issue of the ITE Journal, an article on vehicle speeds in school zones was published. The article concluded that a significant proportion of vehicles were measured at excessive speeds through school zones during times when children were likely to be in proximity to the road. Further, excessive speeds occurred predominantly at schools with faster approach speed limits,while slower approach speed limits were associated with better speed compliance. This finding resulted in the recommendation that new school construction on roads with higher speed limits should be discouraged. Finally, school-zone speed limit signs with flashing lights were effective in slowing vehicles. Over the past few years, many jurisdictions have constructed in-roadway crosswalk warning systems. The California Traffic Control Devices Committee is currently evaluating these types of devices for adoption. The less- than-significant impacts discussed can be reduced through the implementation of the following project condition of approval. Condition of Approval TRAFFIC-]:' RAFFIC1:- To insure a higher level of pedestrian safety within the community near the school, the following elements shall be included within the Neighborhood "F"improvement plans and/or the subdivision design prior to approval of the first final map: 1. Redesign the placement of the pedestrian corridors either within the school or within the adjacent residential areas so that both sides of the pedestrian corridors line up. 2. Provide a speed table(raised intersection)mid-block where the pedestrian corridor crosses the collector street. The speed table should be a minimum of 25 feet in width. The transition between the normal street elevation and that of the speed table shall be designed using standards consistent with speed hump designs. However, the lineal distance for the transition shall be extended as necessary to insure safe operation for emergency vehicles. 3. The safety adequacy of the speed table shall be evaluated by the CSD at or before the construction of the 500`h and 900"'single-family residential units within Neighborhood "F". If warranted to provide for additional pedestrian safety,flashing lights shall be installed at the corner of the raised intersection and/or an in-roadway crosswalk lighting warning system shall be installed along the edges of the speed table 4. At each location where the pedestrian corridor and collector street interface, warning signs shall be installed. C:voesysJCUNMALS=rMALMTLA rtroY-PARMDOC(7/21/00) 71 V.F. TRANSPORTATIONrrRAFFIC