4.9. SR 08-05-2019 - Laserfiche WebLink

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Project Approach, Page 10 Project Approach - Section 3 Identify what barriers exist that limit potential connections such as existing railroads or parcels that need to be avoided Review additional connections, changes to connections, or potential alignments that may benefit the transportation system. The study will include visually appealing and easy to understand graphics that summarize the key principles discussed above. These graphics will be critical to developing reasonable corridor alignments for further study. Crash Analysis We will evaluate the corridor and intersections for safety and operational issues. A crash analysis, using five years of historic crash data from Minnesota Crash Mapping Analysis Tool (MnCMAT), will be completed to understand existing baseline conditions. Crash rates will be calculated at all study intersections to understand crash trends. Crash data will be used to complete the signal warrant analyses in accordance with MnMUTCD. Locations with significant crash concerns will be reviewed to identify appropriate mitigation measures. The findings of the existing conditions, crash, and warrant analyses will be documented in the Existing Traffic Operations, Signal Warrant, and Safety Memo. Future Volume Forecasting and Intersection Analysis Through input from agency staff, Kimley-Horn will develop 5- and 20-year traffic projections for the study area considering: Long-Term Commuter Growth – Based on the traffic forecasting we performed for the Twin Lakes Road/Yale Street Extension Preliminary Design project. We will review available traffic studies and transportation plans and update the background growth rates as required. Local Development Growth –We will utilize the future corridor development meetings to verify and gain the best possible understanding of potential development along the corridor. This information will be used to make sure the forecast horizons include this growth. Changes in Traffic Patterns – Some of the intersection control/alignment concepts developed will impact traffic patterns. Traffic forecasts will be summarized in a Traffic Volume Forecasting Memo. Using the 5- and 20-year traffic volume forecasts, Kimley-Horn will perform a No-Action analysis to determine future baseline conditions at the study intersections. The results of this analysis will help guide recommended improvements at the study intersections to achieve acceptable operating conditions. Measures of effectiveness reported will be the same as the existing conditions analysis. Using the results of the No-Action analysis and sound transportation engineering principles, we will develop five intersection control/realignment alternatives for the intersections identified in the RFP. The No-Action model will be modified to create future build models for each concept. The build models will be used to test and refine the concepts to make sure concepts will serve forecast traffic volumes at an acceptable level of service. A sensitivity analysis will be performed to determine the resiliency of the concepts developed. 7.4 Existing and Future Conditions Analysis Conceptual aerial layouts and cost estimates will be prepared for each alternative identified for the project. A decision matrix will be developed to clearly compare alternatives to assist the Project