The Louisiana Crash Too is used for roadway network screening, crash pattern recognition, and safety performance analysis and helps transportation agencies identify locations with the greatest potential for safety improvement across the road system. By combining network screening methods, safety performance functions, and specialized crash analysis tools, it enables engineers to detect recurring crash patterns, evaluate roadway risk, and prioritize projects based on data rather than guesswork. This application supports better decision-making for selecting and implementing highway safety improvements with the goal of reducing crashes, fatalities, and serious injuries on Louisiana roadways.
About the Louisiana Crash Tool
How It Works
The Louisiana Crash Tool supports a practical workflow to select, review, summarize, and analyze crash data.
Query the Data
Query by road details, point and radius, or drawn area. Save query as a segment or intersection project.
Review and QA
Inspect crashes using the query view, dashboard view, or one of several map views. Quality Assurance review can also be done in a project.
Crash Detail Summaries
Open summary views to explore crash records by factors such as alcohol, day of week, hour, collision type, and work zone status.
Run Analysis
Run roadway or intersection analysis tools, review output, rerun as needed, and export final results to PDF for dissemination.
Integrated Tools
- Basic Query Search crash records using standard filters and review the matching results in the main query workspace.
- Spatial Query Search by defined area or by point to focus analysis on a corridor, intersection, neighborhood, or other location of interest.
- Dashboard View Use dashboards to review aggregate crash information and support high-level safety monitoring.
- Segment/Intersection Analysis Tools Identify over-represented crash types and calculate the overall safety performance of a selected site.
- Countermeasure Evaluation Calculate the potential benefits of hypothetical countermeasures at a site based on the expected effects they would have on the types of crashes occurring at the site.
Features & Capabilities
Basic Crash Search
Run general crash queries from the main query workspace.
Search by Area
Use spatial search areas to isolate crashes in a defined geography.
Search by Point
Focus investigation around a selected point, including intersections or other mapped locations.
Crash Clustering
Toggle clustered crash symbols for easier map interpretation at broader zoom levels.
Heat Map Display
Use heat map visualization to identify concentrations of crashes across a selected area.
VRU Layer
Display vulnerable road user information as part of map-based review.
Summary Categories
Review built-in summaries for alcohol, pedestrian, parish, route, year, hour, collision type, and other safety factors.
Analysis Results
View saved roadway, intersection, and countermeasure analysis results from the Results section.
- Authorized Use: Tool access, downloads, project creation, and analysis functions may depend on user role and permissions. Contact your DOTD support for access questions, training needs, or account assistance.