Wisconsin Information System Local Roads: State and Local Data Integration

This case study presents the Wisconsin Information System for Local Roads (WISLR) project for safety and asset management. WISLR is an example of integrating State and local road data in a spatial framework that differs from the one already in place for State-maintained roads. The integration of spatial information uses an “on/at/towards” location referencing system for local road and crash information along with a translation from the linear reference system (LRS) that applies to State-maintained routes (route and milepoint). The result is an all-public-roads database using a single LRS and basemap. Local agencies collect and own the data, but the centralized system is available to all authorized users. The case study also examines how Wisconsin plans to use WISLR to meet Federal requirements and how the system has improved Wisconsin Department of Transportation’s (WisDOT) ability to locate crashes accurately.