8.1. SR 05-04-2020 - Laserfiche WebLink

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MnDOT Contract No. 1028386 Work Order No. 1 Exhibit B Detailed Scope of Work and Deliverables 13 The consultant team will collect this data using video cameras which will allow them to process exactly what we need for the scope of the study. If desired, 24-hour counts could be processed at any of the locations; however, it is anticipated that only a.m., mid-day, and p.m. peak hour counts are necessary for completion of this study. These counts will be processed to capture passenger vehicles, freight vehicles, pedestrians, and bicycles. Upon completion of the data collection task, a thorough evaluation of existing and future year no build conditions will be completed. The evaluation will include a field assessment, safety analysis (future condition), gap analysis, traffic operations analysis, origin-destination analysis, and a review of existing Intelligent Transportation System (ITS) infrastructure. The analysis methodology and assumptions will be shared with the Local Government/Agency and State prior to the start of the analysis. Field Assessment The consultant team will conduct a field assessment during the morning, noon, and evening peak periods on a typical weekday. During the assessment, the consultant team will observe and document traffic operations including intersection delay and queuing. In addition, the consultant will also identify sight distance issues and observe driver behaviors including the current levels of gap acceptance at side-street stop locations. These types of observations can only be made in the field and cannot be learned from traditional traffic data collection practices. These observations will play a critical role in the calibration of the existing model and identifying the appropriate improvements for the corridor. Corridor and Subarea Origin-Destination Assessment The consultant team will collect origin-destination (O-D) information from StreetLight Data (www.streetlightdata.com), through State’s access to the service. By using Global Positioning System (GPS) O-D data, the consultant team can answer many questions that a traditional license plate or survey study cannot. This big data can be used to evaluate a larger area, help identify which route specific origin-destination combinations are used and evaluate trip attributes and patterns. Using StreetLight data, we will create an origin-destination matrix and graphical representations of existing travel patterns that use the TH 10 corridor. This data will account for the distribution of local trips that have a trip end in Elk River and Ramsey amongst other trips using the regional system. This will help to understand how TH 10 interacts with the adjacent, connecting roadway system to service the area. The consultant team will work with State and Local Government/Agency staff to select a time period that represents a typical operation of TH 10, one that doesn’t account for traffic diversions due to a project on TH 10 or an adjacent corridor. This data will allow us to answer some critical questions: 1. Who is using the TH 10 corridor (regional vs. local trips)? 2. Do these patterns vary by time of day? 3. Do these patterns vary by weekday vs weekend? 4. Do these patterns vary by vehicle type (freight vs. passenger vehicles)? Operations Analysis The consultant team will use VISSIM software to conduct the traffic operations analysis for the study area. VISSIM is a microsimulation traffic operations model that can model high-speed corridors and local arterial networks. By using a consistent model, the consultant team can produce results that capture overall system traffic operations (Vehicle Miles Traveled [VMT]/Vehicle Hours Traveled [VHT]) instead of using two separate models to evaluate the local and regional system. In addition, VISSIM is capable of producing quality animations that will be used to facilitate project stakeholder meetings and convey technical information to the public in an easy to understand visualization. Another advantage of VISSIM is its ability to analyze unique at-grade and grade separated alternatives that may be developed through the project. Some of these unique designs may include roundabouts and Reduced Conflict Intersections (RCI). The existing conditions model will account for the following key existing intersections: 1. Alpine Drive and TH 10 2. Jarvis Street and TH 10