5.1 PCSR 05-24-1994 - Laserfiche WebLink

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Mr. John Weicht -7- May 11, 1994 The top half of Figure 4 shows the existing and post-development traffic volumes at the • T.H. 169/Main St. intersection with the right turn in/out access on T.H. 169 at Carson St. The traffic volumes on all the approaches increase with the addition of the proposed development, which equates to 4.8 percent more traffic entering the intersection. This increase is smaller than that shown in Figure 4 due to vehicles exiting T.H. 169 prior to Main St. and then continuing west on Main St. Once again, this is a relatively small increase and should have no significant impact on traffic operations of this intersection. The bottom half of Figure 4 shows the existing and post-development traffic volumes at the Main St./Carson St. intersection with the right turn in/out access on T.H. 169 at Carson St. Traffic volumes increase for the movements to and from Carson St., as expected, and remain the same or decrease slightly on Main St. The increases on Carson St. will probably cause additional delays to vehicles using this street, especially to those exiting the area on Carson St. ANALYSIS OF TRAFFIC NEEDS AT CARSON ST./MAIN ST. INTERSECTION As discussed earlier, it is expected that higher traffic volumes will be experienced at this intersection following the proposed development's construction. In order to help alleviate possible conflicts the additional traffic may have at this intersection, it is our recommendation that Carson St. be widened to add a right turn lane for the southbound traffic. We also recommend the addition of a two foot striped island to separate the northbound and southbound movements, as well as a stop line for southbound vehicles to keep them from extending into the intersection while stopped. The addition of the • striped island and the stop line will help reduce the likelihood of the type of accident described earlier from occurring. Figure 5 shows the concept layout plan for this intersection, incorporating our recommendations. With these improvements, we feel the intersection will be able to adequately accommodate the additional traffic generated by the proposed development. CONCLUSIONS From the traffic analysis documented in this memorandum, we have established the following conclusions: . Under both roadway alternatives - 1) Carson St. remaining as a cul-de-sac and 2) Carson St. extended to provide right turn in and out access on T.H. 169 - it is expected that traffic volumes will increase at both the Carson St./Main St. and T.H. 169/Main St. intersections. . The traffic volume increase at the T.H. 169/Main St. intersection is expected to be small and therefore no significant impacts are anticipated due to the additional traffic. • Improvements are recommended at the Carson St./Main St. intersection to improve safety and reduce delay. The improvements include the addition of a right turn lane for southbound Carson St., the creation of a striped center island and the addition of a stop line for southbound Carson St. •