NATIONAL DATA & SURVEYING SERVICES 2 - 2011

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N� S l�Tat3onal Data 8c Surveying Services Corporate Office 8370 Wilshire Blvd. Ste 209 Beverly Hills, CA 9021 I T- (323) 782 -0090 F- (323) 375 -1666 Email: Infona..ndsdata.com 24 -hour Sing /e/�ua/ -tube Counts: • Locations are given to the Field Manager for review and collection planning. • A site check is made to access the optimum machine location, flow and geometry of the street. • Data collectors meet with Field Manager minimum one <1) day before count to review requirements, machine locations, and safety issues. • Only experienced staff and state -of- -the -art equipment will be used. • Rubber hoses will be checked and damaged tube will be replaced. • Lo profile rubber hoses will be used to reduce the risk of injury to pedestrians and bicyclists. • Computerized counters will be setup on the day prior to the day of the count and will be picked up the morning after the count to ensure a full 24 -hour count (midnight to midnight). • The tube length for all machine counts shall not exceed 60 foot and should not extend more than three (3) lanes. • Counts will be conducted according to the City of Santa Ana's protocol on Tuesday, Wednesday, and Thursday. Field Manager checks data collection throughout the day to ensure proper procedures are being followed. • Counts will be broken down by 15 minute increments_ • Entering (approach) volume counts will be taken at locations where driveway and other turning _movements will not adversely affect counts. • Counters are downloaded in the field, analyzed for any problems. If problems are discovered the machine counter is reset and the count is redone at no cost to the City. • One two - directional hourly count sheet data fife and one two - directional fifteen minute count sheet/data file for each ADT volume (separated by directions as appropriate), and peak hourly volumes. Each sheet will contain all legs. of the intersection • One hourly and one 15- minute count sheet/data file shall be prepared for each entering (approach) traffic volume count. • if requested, NDS has the capability to compile. all citywide "Street Segment Count" data into a City Traffic Ftow Map • The variation in hourly volumes can also be graphically presented for each location, if requested. • Data elements collected will be as specified in the RFP. • Data is turned into our office for process and formatting for delivery to City. • Project Manager proofs the data for quality control before releasing to City. Data is delivered to City in accordance with the requirements of the RFP. Manua/ Turning Movement and Pedestrian Counts: • Locations are given to the Field Manager for review and collection planning. A site check is made to access the flow and geometry of the intersection.