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City of Santa Ana Pavement Management Program Update RFP No. 19-070 August 6, 2019 distresses such as tree root distortions, edge cracking, oil spots from parked cars etc. The PCI can be either lower or higher than walking surveys, depending on the types of distresses. Finally, these vehicles are expensive to purchase (typically over $100,000 per) and unless the City wishes to be tied to one vendor for future PMS updates, this option is not usually recommended. NICE recommends walking surveys for MPAH and Locals to maintain continuity of survey methods. This was the methodology in 2017. 41 OCTA recommends walking surveys for MPAH roadways. 10 Walking surveys are more accurate and better capture the distresses caused by the higher increased traffic and loading. 43 Windshield surveys for the Alley network is sufficient. NCE will provide costing for this method. Therefore, NICE will perform walking pavement condition surveys in accordance with the established standards as per ASTM D6433-11. A minimum of one sample unit per section will be inspected. Approximately one sample unit will be inspected for each 1,000 lineal feet of roadway. Any variation from the established procedures will be to accommodate unique local conditions, e.g., gap -graded texture of rubberized asphalt concrete overlays, chip seals over Portland cement concrete pavements, etc. These conditions typically exhibit unique distresses that may not be reflected in any distress manual, so special exceptions will need to be made. Any areas which are not typical of the entire section will be inspected and recorded as a special sample unit. High severity bleeding Our scope of work and condition surveys do not address issues including, but not limited to traffic, safety and road hazards, geometric issues, road shoulders, sidewalks, curb and gutters, drainage issues or short- term maintenance that should be performed. NCE will be responsible for providing all equipment necessary for performance of this task. Should City personnel wish to observe NCE's crews during the surveys, we will be more than happy to accommodate the City. Individual city staff may also accompany NCE's field crews for up to a half day each — to gain hands-on training at no additional cost to the City. We have found that this is the most effective training method for agency staff, as they become part of the data collection crew, rather than just an observer. Data Entry and PCI Calculations The distress data will be recorded on tablets once the surveys are complete. We will be responsible for providing all equipment necessary for performance of this task. The data will receive random quality control checks to ensure that it is complete and accurate. Quality Control Quality management practices for pavement management suggest that a one-time survey of the final data are typically inadequate and involve a high risk of failure. Quality Control (QC) checks are critical on a project such as this. As part of NCE's goal to provide a superior quality product for our clients, we incorporate a QC component into all of our projects. For this project, we have proposed the inclusion of a QC Manager, Mr. James Signore, as noted in our Project Organization chart. Mr. Signore will have the following project responsibilities: 4XONCE Page 119 25D-32