I-4 - Resolution 2023-065 - Stop Signs at Goldfinch Drive and Potter Street

VEHICULAR TRAFFIC COUNTS AND 85TH-PERCENTILE SPEEDS Average entering daily traffic counts, and 85th-percentile speeds were collected at the intersection between August 29th and September 1st, 2023, and are reflected in Figure 1. Goldfinch Drive carries 634 entering vehicles, whereas Potter Street carries 527 entering vehicles. The 85th-percentile speeds on Goldfinch Drive were approximately 33 mph, whereas speeds on Potter Street were recorded at approximately 24 mph and 31 mph. ALL-WAY STOP WARRANT ANALYSIS Specific traffic conditions should exist to meet the requirements of an all-way stop. The criteria (warrants) are based on traffic volumes, collision history, pedestrian volumes, and traffic speeds. Installing stop signs in locations where they are not warranted results in a greater chance of rear-end collisions, motorists rolling through the stop signs, and higher traffic speeds downstream of the stop signs. It is important for all-way stop requests to be carefully considered for these reasons. In analyzing the intersection, 1 of 4 of the following criteria (A-D) from the Manual on Uniform Traffic Control Devices (MUTCD) must be satisfied to warrant an all-way stop-controlled intersection. A. Where traffic control signals are justified, the multi-way stop is an interim measure that can be installed quickly to control traffic while arrangements are being made for the installation of the traffic control signal. • Arrangements are not currently being made for a traffic control signal at this location; therefore, Warrant A is not applicable. B. A crash problem, as indicated by 5 or more reported crashes in a 12-month period that are susceptible to correction by a multi-way stop installation. Such crashes include right and left-turn collisions and right-angle collisions. • In the past five years, there was only one collision at this intersection; therefore, Warrant B is not met. C. Minimum volumes: 1. The vehicular volume entering the intersection from the major street approaches (total of both approaches) averages at least 300 vehicles per hour for any 8 hours of an average day; and • Traffic from the major street (Goldfinch Drive) does not have more than 300 entering vehicles for any hour of an average day (Table 1); therefore, Warrant C1 is not met. 2. The combined vehicular, pedestrian, and bicycle volume entering the intersection from the minor street approaches (total of both approaches) averages at least 200 units per hour for the same 8 hours, with an average delay to minor street vehicular traffic of at least 30 seconds per vehicle during the highest hour; but • Vehicular traffic from the minor street (Potter Street) is never greater than 200 vehicles for any hour of an average day. Pedestrian and bicycle traffic were not frequent enough to make up the difference for eight hours of an average day; therefore, Warrant C2 is not met. 3. If the 85th-percentile approach speed of the major street traffic exceeds 40 mph, the minimum vehicular volume warrants are 70 percent of the above values. • The 85th-percentile speed on Goldfinch Drive did not exceed 40 mph; therefore, Warrant C3 is not applicable.