1992 AGN Jan 21 I07 - Laserfiche WebLink

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J. F. Davidson Associates, Inc. MUNICIPAL ENGINEERING DIVISION November 11, 1991 CITY OF COLTON Attn: Mr. Glen Wilson, City Engineer 650 North La Cadena Drive Colton, CA 92324 W.O. #9112637 RE: TRAFFIC STUDY FOR INTERSECTION SAFETY AT THE INTERSECTION OF 9TH STREET AND "D" STREET. Dear Mr. Wilson: We are pleased to present our findings of the traffic safety study for the intersection of 9`h Street and "D" Street as outlined in our proposal dated September 6`h, 1991. The findings, conclusions, and recommendations contained herein are based on field observations from J.F. Davidson personnel and sub -consultants acting under the direction of J.F.D., along with various reference sources. STUDIES Included in this study are the 24 hour entering volume machine counts for the intersection approaches, A.M. and P.M. peak hour turning movement counts, existing signing and striping conditions for the intersection and intersection approaches, collision data analysis and collision diagrams, and sight distance analyses. Traffic control warrant analyses consisting of warrants for minimum volume, interruption, minimum pedestrian, school crossing, progressive movement, accident history, systems, combination, four hour, and peak hour volumes were performed for multi -way stop signs and signals as applicable. In addition, a speed zone analysis was undertaken to determine the 85`h percentile vehicle speed. Attached is an appendix which includes the traffic count data, speed zone survey data, signal and multi -way stop warrant analyses, and intersection accident data. EXISTING CONDITIONS The intersection of 9`h Street and "D" Street is currently controlled by a stop sign, with traffic on "D" Street (assumed as an East/West street) stopping for traffic on 9`h street (assumed as a North/South street). Figure 1 illustrates the conditions diagram which shows the existing 3426 Tenth Street • P.O. Box 493 • Riverside, CA 92502 • (714) 683-0209 • FAX 714-686-5807