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AMENDMENT TO SCOPE OF SERVICES RK SHOPPING CENTER SIGNAL WARRANT STUDY K&S Project No.: 17747.02.9006 Section 1: TrafficfTransportation Engineering Services Task 9006: RK Shopping Center Signal Warrant Study Keith and Schnars will prepare a signal warrant study of the intersection of Collins Avenue and the driveway connections serving RK Village shopping center to the west and the Trump residential development to the east. The analysis will be conducted consistent with Chapter 4C of the Manual on Uniform Traffic Control Devices (MUTCD), 2003 edition. The eight warrants identified in the MUTCD 2003 will be thoroughly investigated, assuming that the driveway connection se!ving the shopping center that connects to 183rd Street is closed and the traffic utilizing this connection is re-assigned to the proposed signalized driveway accessing Collins Avenue. In addition, it is assumed that the Trump residential development is occupied, generating traffic volumes consistent with estimates published by the Institute of Transportation Engineers' Trip Generation manual, f7h Edition. Further, the elementary school currently under construction at 183rd Street and Atlantic Boulevard, west of the shopping center, is scheduled to be operational by August 2008. The anticipated traffic volumes and pedestrian volumes, as reported in the school's Traffic Impact Analysis report, will be utilized to assess if a traffic signal is warranted at the study location. This study will be conducted consistent with the methodology outlined in the MUTeD 2003 for each signal warrant, and in no way guarantees approval for signal control at the study location. Transportation Inventory The physical and operating characteristics of the existing roadway network within the project's study area will be inventoried. Data to be acquired within the study area will include the number and type of traffic lanes on the major roadway, intersection geometries, existing traffic volumes (to be collected) and other appropriate physical and operating characteristics. Review Recent Traffic Studies K&S will conduct a review of recent traffic impact studies prepared for the elementary school (School BB-1) and Trump residential development. In addition, a review of a previously prepared signal warrant analysis for this intersection, prepared on behalf of the Trump development, will be reviewed. The information gained from these studies will be used to aid in the development of traffic volumes that incorporate school and Trump residential development traffic volumes. These volumes will be assigned to the roadway network to estimate hourly traffic volumes along Collins Avenue, RK Village Shopping Center, and the Trump residential development. It is assumed that the Trump development and the school will function at full occupancy. Data Collection K&S will gather 12 consecutive hours of turning movement volumes on three consecutive weekdays (Tuesday, Wednesday, and Thursday) at the subject intersection, as well as at the driveway connection to 183rd Street that serves the shopping center. The magnitude of pedestrians walking across Collins Avenue will be collected for the same 12 hours on the three days. Finally, the size and frequency of gaps within the traffic stream on Collins Avenue north and south of the study intersection will be collected. This vehicular gap data will be collected for northbound flow, southbound flow, and a combined northbound-southbound flow to determine the adequacy of gaps as it relates to pedestrians' ability to safely cross Collins Avenue at this location. Crash Data Coordinating with city staff, K&S will gather and summarize recent crash data along Collins Avenue within 500 feet of the study intersection. Data will be focused upon crashes deemed correctible if signal control were implemented at the study location. .-. =Ir....~= KEITH and SCHNARS, P.A. ': ....ll.., = ENGINEERS, PLANNERS, SURVEYORS --