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PT Engineering (as a subconsultant to Wetherill Engineering, Inc.) developed a traffic simulation analysis for U‐6081; NC 53 (Western Boulevard) widening from US 17 (Marine Boulevard) to SR 1308 (Gum Branch Road) in Onslow County. The purpose of this analysis was to analyze the traffic operations for the proposed corridor widening and implementation of the modified superstreet design. The study included the analysis of the 2018 and 2040 Scenarios for both the No‐Build and Build scenarios. The analysis utilized microscopic simulation of each of the scenarios in TransModeler, including the development of a visually validated base year model.
SPOT 6.0 Pre-Submittal
PT Engineering provided assistance to the NCDOT Program Management team for the development of microscopic simulation models in TransModeler. The simulation models were used to screen potential project for SPOT 6.0 and determine the travel time savings component for scoring in the NCDOT Prioritization Process. PT Engineering was responsible for reviewing the analysis of 14 projects in TransModeler. PT Engineering also reviewed the volume development for 57 intersections. Additionally, PT Engineering developed volumes for 18 intersections and 13 projects.
PT Engineering (as a subconsultant to Three Oaks Engineering, Inc.) developed a traffic simulation analysis for U-4739; SR 3556 (Amboy Road/Meadow Road) improvements from I-240 to US 25 (Biltmore Avenue) in Buncombe County. The purpose of this analysis was to analyze the traffic operations for multimodal and operational improvements along the corridor. The study includes the analysis of the 2018 and 2040 Scenarios for both the No-Build and Build scenarios. The analysis utilizes microscopic simulation of each of the scenarios in TransModeler including the development of a visually validated base year model. Three build alternatives were analyzed including addition of turn lanes and signalization, roundabouts and a combination of signalization and roundabouts.
U-5858 / U-5753
PT Engineering (as a subconsultant to Dewberry Engineers, Inc.) developed a traffic simulation analysis for U-5753/U-5858; SR 1305 (Wayside Rd) widening/SR 1418 (Lindsay Rd) Widening in Hoke County. The purpose of this technical memorandum is to analyze the traffic operations for the proposed alternatives for U- 5753/U-5858 and includes the analysis for both the 2017 No-Build and Build Scenarios and 2040 Scenarios for both the No-Build and Build Scenarios. The analysis utilizes microscopic simulation of each of the scenarios in TransModeler, including the development of a visually validated base year model. Two build alternatives were analyzed including a reverse superstreet intersection and a grade separated quadrant interchange.
PT Engineering developed a traffic simulation using TransModeler software for I‐5986, which includes widening I‐95 to eight lanes from the I‐95 interchange with I‐95 Business/US 301 (Exit 56) in Cumberland County to the I‐95 interchange with I‐40 in Johnston County. The proposed improvements include adding two lanes on I‐95 in both directions and a new ramp at the I‐295 interchange to complete the missing movement from I‐95 northbound to I‐295 westbound. The study included the analysis of the 2018 existing conditions and the 2040 Scenarios for both the No-Build and Build scenarios. The results of this analysis for this project will also be included in an Interstate Access Report that will also completed by PT Engineering.
PT Engineering (as a subconsultant to Dewberry Engineering, Inc.) developed a traffic capacity analysis for R‐2814D; widen US 401 (Louisburg Rd) to a four‐lane divided facility from SR 1103 (Flat Rock Church Road/Clifton Pond Road) to SR 1700 (Fox Park Road) in Franklin County. The study included the analysis of the 2017 and 2040 No‐Build Scenarios and 2040 Build scenarios. The analysis utilizes Synchro/SimTraffic for both signalized and unsignalized intersections. A superstreet configuration was analyzed and recommended for US 401 to maintain uniformity in cross sections and access control strategy.
PT Engineering (as a subconsultant to Dewberry, Inc.) developed a traffic capacity analysis for I-5870, which proposes to modify the I-440/Ridge Road interchange and convert it to a full-movement interchange with a connection to SR 1670 (Blue Ridge Road) at Crabtree Valley Avenue. Synchro/SimTraffic was utilized to perform the intersection capacity analysis and FREEVAL was utilized to analyze the I-440 freeway operations. The model network included 30+ intersections for the 2018 existing year and two build alternatives. The purpose of the analysis was to determine if the preliminary designs would operate acceptably and for a comparison to the existing conditions. The build capacity analysis included multiple alternative intersection designs including a diverging diamond interchange at I-440/Glenwood Avenue and a continuous flow intersection and echelon interchange at Glenwood Avenue and Blue Ridge Rd.
U-5605 / U-5802 / U-5930
PT Engineering developed a Small Area Study for Spring Lake in Cumberland County. U-5802 (Spring Lake Loop), U-5605 (Odell Rd Widening) and U-5930 (Manchester Rd Interchange) are in close proximity to one another and it was determined that performing a small area study would be most beneficial. The analysis included a traffic simulation model that encompassed the study areas of each project and adjacent areas that would be affected by the proposed improvements. The analysis included a visually validated base model for the 2017 existing year that compared model-predicted traffic performance against field observations. Additionally, models were developed for the 2040 Future Year No-Build and Build scenarios. The study included seven build alternatives based on various combinations of STIP projects. The model utilized StreetLight Data, Inc. origin-destination data as the basis for the development of the OD matrix for the study. Due to multiple routes being present in the study area and the primary benefit of the proposed design being to provide alternative access, Dynamic Traffic Assignment (DTA) was utilized to realistically predict the future travel patterns in the study area for the design alternatives.
PT Engineering (as a subconsultant to CALYX) developed a traffic simulation analysis for U‐5722; US 421 Business (Horner Boulevard) Improvements. U‐5722 is defined as the reconstruction of Horner Boulevard, from US 15‐501 to north of SR 1514 (Bragg Street). The analysis included a visually validated base model for the 2017 existing year that compared model-predicted traffic performance against field observations. Additionally, models were developed for the 2040 Future Year No-Build and Build scenarios. Three separate build alternatives were analyzed including part of a conversion to a “complete street” with improvements such as medians, sidewalks, bicycle facilities, and streetscaping.
PT Engineering (as a subconsultant to AECOM and directly for NCDOT) provided technical oversight and quality control services for the update to the Traffic Capacity Technical Memorandum, that includes a study area that encompasses 16 interchanges and evaluates four alternatives. PT Engineering (as a subconsultant to URS Corporation/AECOM) is developing a comprehensive simulation analysis of the I-26 Connector project, including a calibrated base model and four build scenarios. PT Engineering developed the technical approach for the study and was responsible for leading the development of the calibrated base model in TransModeler. Mr. Trencansky is also providing quality control and technical oversight of the build model development and analysis.
I-5714 / I-5715
PT Engineering is provided simulation analysis and oversight services for a study utilizing TransModeler along I-77 in Mecklenburg County. There are several interchange improvement projects along the I-77 corridor; therefore, a single calibrated base model was be developed from south of I-485 to north of Catawba Avenue that included 14 miles of freeway, four interchanges and 18 signalized intersections. The calibrated base model was then used as the basis for the individual project level analysis for the I-5715 project which includes a split diamond design and requires the use of Dynamic Traffic Assignment to route traffic through the revised design. The future year model included the planned managed lanes along I-77 with the traffic being routed statically along the proposed new lanes.