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City of Santa Ana -Park View at Town and Country Manor <br />Draft EIR <br />and Traffic <br />underground parking garage from a ramp located at the southeast part of the building near the <br />Memory Lane driveway entrance. <br />Site Distance Analysis <br />A sight distance analysis was conducted for both the south entrance on Memory Lane and the west <br />entrance on Lawson Way using County of Orange standards. Based on County standards, the <br />required sight distance for an unsignalized intersection on a collector street is 390 feet. <br />Sight distance is defined as the distance along the main roadway required to allow 7.5 seconds for the <br />driver on the side of the street or driveway to safely enter the traffic stream on the main roadway <br />while the approaching vehicle travels at the assumed design speed of the road. Sight distance is <br />measured along the centerline of the road from the driver's eye (assumed to be 3.5 feet in height) <br />while seated in a vehicle 10 feet back from the projection of the curb line, to the oncoming vehicle <br />(4.25 foot object height) in the center of the right through travel lane. The line of sight — a straight <br />line between the driver's eye and the oncoming vehicle in the right through travel lane — defines the <br />Limited Use Area. The Limited Use Area must be kept clear of obstructions in order to maintain <br />adequate sight distance. <br />The sight distance analysis for the project was conducted by KHA through field observations and <br />ground measurements. The results of the analysis are summarized in Table 4.6 -33. There are no <br />trees or other obstructions in the Limited Use Area that block the driver's view looking in either <br />direction from both driveway entrances along Lawson Way and Memory Lane. However, the sight <br />distance to the east (looking to the left) along Memory Lane is limited by a curve in the roadway. <br />Field measurements indicate that the sight distance to the east of the Memory Lane driveway entrance <br />is 470 feet. This measured sight distance is greater than the required 390 feet. Drivers exiting the <br />project site onto Lawson Way may turn both left and right. The sight distances available from this <br />location are only restricted by the signalized intersections north and south of the driveway, and are <br />also greater than the required distance. <br />Table 4.6 -33: Sight Distance Summary <br />Locatio Sig m: nce eqw <br />Sight Distance Provid <br />Project Driveway at Memory Lane <br />Looking to the right <br />N /A' <br />Looking to the left <br />390 ft <br />470 ft <br />Project Driveway at Lawson Way <br />Looking to the right <br />390 ft <br />560 fe <br />Looking to the left <br />390 ft <br />440 ft' <br />Notes- <br />' Not applicable. Left turns are prohibited by a raised median. <br />2 Distance to intersection of Lawson Way and Town & Country Road. <br />3 Distance to intersection of Lawson Way and Memory Lane. <br />Source: Traffic Impact Study and Parking Analysis for the Park View at Town & <br />Country Manor, Kimley -Horn <br />Associates, Inc., June 2009. <br />Michael Brandman Associates 4.641 <br />H\Cl t(PN- JMb32]b32]003MMVB2]0030 Sec01 Tmspo md¢ <br />