Last Thursday, Austin City Council approved zoning for The Grove at Shoal Creek, a mixed-use development that could add more than 1,500 residential units, 200,000 square feet of office space, and more than 125,000 square feet of retail, restaurant, and service space. More than 150 affordable housing units would be provided as well.
BIG RED DOG completed the transportation impact analysis (TIA) for this effort, which included detailed trip generation estimates accounted for internalization due to the mix of uses and existing mode splits in the surrounding neighborhood.
Overestimating trips generated by land uses can lead to excessive traffic impacts and related mitigation that can discourage development of otherwise desirable projects, or transportation that is not sized to the setting of the development (leading to inappropriately-large intersections that affect communities). The project team evaluated more than a dozen external intersections and seven access driveway locations for the project, internal intersection control throughout the Project site, access and circulation for vehicles, pedestrians, and bicyclists, and impacts on the surrounding transit system. The final transportation impact analysis (TIA) was approved with all impacts on vehicles fully mitigated by the Project, and several pedestrian, bicycle, and transit improvements made in the surrounding neighborhood.
Feedback was provided to develop a more walkable, compact Project. This feedback included additional connections, changes to the roadway design to slow vehicles down throughout the site, and evaluation of land use mixes to further increase internalization of vehicle trips.BIG RED DOG also created the first Transportation Demand Management (TDM) Plan for a private development in the City of Austin, with aims to further reduce vehicle trip generation. This comprehensive TDM program was prepared to include multimodal measures that best fit the context of the site and its users. It includes measures that were incorporated into the site’s design and those that could be implemented by the property manager or by the tenants/employers. It also provided framework to evaluate Project features and measures offered by the applicant as part of the Project to determine potential further trip generation reductions.