Linear Referencing System (LRS)

Data Collection

Data collection is one of the main tasks at the Roadway Data Office. While the office relies primarily on aerial imagery for the collection of new roadway centerline data, other methods are currently being researched. Once data is collected and quality controlled, they are added to the LRS.

LRS management

Using a GIS, new roadway additions and revisions are edited and the LRS is updated. Additionally, municipal boundaries are maintained and updated when appropriate. LRS management is an integral part of the Roadway Data Office as it helps enforce data quality and integrity prior to data entry. This data is used in making sound planning and programming decisions.

MIRE (Model Inventory of Roadway Elements)

MIRE is a guide provided by the FHWA of “data elements that States could collect to develop a comprehensive roadway and traffic data inventory for safety management” (FHWA, MIRE 2.0). The Roadway Data office is working to ensure TDOT’s data inventory will meet all federal guidelines.