Nevada Department of Transportation Adds Geospatial Analysis to Safety Management System using Intergraph Transportation Solutions

Highway crash identification and analysis more in-depth and accurate with geospatial analysis

HUNTSVILLE, Ala., April 4, 2005 - Intergraph Mapping and Geospatial Solutions today announced Nevada Department of Transportation (NDOT) has placed its new geospatially enabled Safety Management System (SMS), based on Intergraph’s transportation solutions, into full operation. The system provides new geospatial analysis capabilities to NDOT’s Safety Engineering Section so it can geographically display information about roadway areas with high incidents of vehicle accidents and better probe underlying causes of accidents.

In operation since the 1970s, the previous SMS led to the elimination of many dangerous road hazards in Nevada, but it required specially trained engineers to extract accident data from the database. Now, using the geographic information system (GIS) front end of the new system, anyone in the NDOT can access and analyze data. An additional advantage of the new system is its ability to graphically represent incidents within a single intersection, which might otherwise appear as two different locations because of road naming conventions. 

“Our analysis will become more accurate and in-depth with the geospatially enabled Safety Management System,” said Kelly Anrig, Chief of Safety Engineering, NDOT. “This will allow us to better address our primary goal of making Nevada roads and highways safer for motorists.”

NDOT used Intergraph’s GeoMedia(R) Professional and GeoMedia Transportation Manager to build a transportation GIS that merges accident data with a roadway base map and relates the two. GeoMedia Transportation Manager compiled partial datasets from several state and local offices into a single, consistent base map in a new Oracle(R) database, converting the data regardless of its native format. GeoMedia Transportation Manager also stores and retrieves all of the different linear referencing methods used by the police to locate crash sites, including intersection offsets, milepost offsets and address matching. Dynamic segmentation capabilities that correctly maintain the relationships between the road and their crash attributes are also incorporated with the new system. With the new SMS, NDOT staff can perform additional applications, such as:

-- Corridor analysis to examine accidents occurring within given proximities of intersections

-- Mid-block analysis to track accidents occurring away from intersections

-- Dataset merges to help more easily identify relationships between crashes and other factors such as pavement conditions

-- Future functionality to be incorporated in the system includes Global Position System (GPS) input of crash locations and department intranet access.

For more information on Intergraph’s solutions for the transportation industry, visit Detailed information about Intergraph products can be found at     


Intergraph Mapping and Geospatial Solutions

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Rita Roberts, Media Relations


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