Traffic Engineering Study

Traffic Engineering Study Traffic Impact Study Town Center Area Prepared For: City of Wildwood 16860 Main Street Wildwood, MO 63040 Prepared By: February 2018 Rev. March 16, 2018 HR Green Job No.: 171140 Town Center Traffic Impact Study City of Wildwood Table of Contents Table of Contents ....................................................................................................................... i Executive Summary .................................................................................................................. ii Introduction ............................................................................................................................... 1 Existing Conditions .................................................................................................................. 3 Existing Street Network ........................................................................................................... 3 Existing Land Use .................................................................................................................... 7 Existing Traffic Volumes .......................................................................................................... 8 Existing Traffic Operations ..................................................................................................... 12 Intersection Capacity Analysis ....................................................................................... 12 Future Conditions ................................................................................................................... 20 Proposed Land Use ............................................................................................................... 20 Traffic Projections .................................................................................................................. 23 Trip Generation ............................................................................................................. 23 Traffic Distribution and Assignment ............................................................................... 25 Future Traffic Volumes .................................................................................................. 30 Future Traffic Operations ....................................................................................................... 38 Future (No Build) .......................................................................................................... 38 Future Transportation Network .............................................................................................. 42 Future (Build) ................................................................................................................ 42 Alternative Intersection Analysis ............................................................................................ 52 Summary ................................................................................................................................. 56 February 2018 i Town Center Traffic Impact Study City of Wildwood Executive Summary A growing movement, new urbanism, recognizes walkable, human-scaled neighborhoods as the building blocks of sustainable communities and regions. Through grids of streets, transportation choices, and the siting of buildings along sidewalks, new urbanism brings destinations within reach and allows for frequent encounters between citizens, in sharp contrast to sprawl. The excerpt above is referenced from the City of Wildwood’s website to define new urbanism as a philosophy which will be embodied by the Town Center Area. As development opportunities continue within the boundaries of the popular destination known as Town Center in Wildwood, Missouri, planning efforts must include the impacts of future growth and development on the local transportation system. A comprehensive review of the City of Wildwood’s Town Center Area was completed in an effort to estimate the traffic impacts resulting from anticipated development on nearby, connecting roadways. Individual traffic studies have been completed for various, isolated new developments in the Town Center area over the years, and most of them make reference to future growth opportunities in the region. However, now that many developments in the area are completed, City of Wildwood officials have recognized a need to reset and take a comprehensive look at where they are at today, and how future development will impact their existing transportation infrastructure. Based on site reviews and aerial imagery, it is estimated that roughly fifty percent of the total land area which makes up the Town Center Area is built out. So what happens when the remaining parcels are developed? Can twice as much traffic be expected? Can the local streets handle the additional traffic? Will there be a need for new street connections? These questions will be answered as part of this traffic impact study requested by the City of Wildwood. The initial steps in this traffic engineering study process involved the review of peak period traffic counts at significant intersections within Town Center Area, as well as along the primary corridors which provide access to the area, such as Route 100, Route 109 and Manchester Road. In addition, existing Town Center zoning maps, Town Center building code, previously completed traffic impact studies, and discussions with the City’s Public Works and Planning Department staff, were used as resources to gain an understanding of the traffic conditions as they exist today, and what to expect for future development opportunities. The transportation network, as it appears today, is continuing to evolve. The City of Wildwood and MoDOT are currently in the design phase to add capacity to the Route 109 bridge over Route 100, and to upgrade the Route 100 eastbound ramps at Route 109 with a roundabout. The City was also successful in securing MoDOT Cost Share funds to widen Route 109 from the eastbound ramps to new Main Street intersection. Even though these transportation network improvements are imminent, they are not part of the existing system today, and will be February 2018 ii Town Center Traffic Impact Study City of Wildwood referenced in the study as “future conditions”. Existing conditions intersection capacity analysis revealed that almost all of the traffic movements operate at favorable Level-of-Service (LOS) D or better throughout the peak period of a typical weekday, as well as the peak period of a weekend. Some individual movements at Route 109 and Manchester, and Route 100 and Manchester may experience some challenges at LOS E during peak periods. Although traffic can be heavy at times, especially on Route 100 and Route 109, the current street network has the capacity to handle the traffic flow. Future traffic volumes were estimated by reviewing zoned but not built developments, future zoning requirements, land use, densities, and existing traffic capture within the area. Taking into consideration that some of the traffic associated with the new developments will be traffic which is already on the street system (pass-by trips), some of the traffic which will patronize more than one place of business in a single visit (internal trips), and some of traffic will actually come from other modes of transportation (such as walking, jogging, or biking), new vehicle trips were assigned to the local street network during the peak traffic periods throughout the day. It is anticipated the new trips to and from the Town Center Area will be as follows: Morning Peak Evening Peak Saturday Peak 1,177 Inbound 1,257 Inbound 1,574 Inbound 745 Outbound 1,600 Outbound 1,262 Outbound Future traffic projections were determined after the new traffic was assigned to the existing street network based on existing traffic patterns, and local and regional trip origin and destination assumptions. Even without considering the new traffic associated with the Town Center Area, traffic volumes on Route 100 and Route 109 will continue to increase; therefore, it was prudent to review future growth potential in the region and estimate how traffic volumes will increase over a twenty-year planning horizon. Based on the review of historic traffic volumes over the past fifteen years, trendlines indicate an average annual growth rate of 0.5%. This rate was applied to traffic on Route 100 and Route 109 to estimate future traffic projections. The rate was not applied to Manchester Road, however, it is expected that much of the traffic growth on this facility will be directly related to future development associated with the Town Center Area. Projected traffic volumes were used to analyze the future intersection capacity based on two separate scenarios. First, existing (or baseline) traffic volumes were projected out with the growth rate over twenty years as previously discussed. This scenario is referred to as “Future, No Build”. Second, trip generation estimates were assigned to the street network and added to the aforementioned future, no build scenario. This scenario, not surprisingly, is referred to as “Future, Build”. Intersection capacity analysis of the Future, No Build scenario revealed all of the intersections are expected to operate at an overall performance rating of LOS D or better. However, some of February 2018 iii Town Center Traffic Impact Study City of Wildwood the critical movements from the baseline traffic analysis will continue to function at less than desirable LOS E. Many of the movements from the

Load more