A comprehensive GIS Roadway network maintained by TxDOT for roadway asset inventory, planning, and mapping purposes
<p style='margin-bottom:0in; background:white;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>The Texas Department of Transportation (TxDOT)
maintains a spatial dataset of roadway polylines for planning and asset
inventory purposes, as well as for visualization and general mapping. This
dataset covers the state of Texas and includes on-system routes (those that
TxDOT maintains), such as interstate highways, U.S. highways, state highways,
and farm and ranch roads, as well as off-system routes, such as county roads
and local streets. <b>Route segments in this version of TxDOT Roadways are
broken by functional classification</b>. For an unsegmented version of TxDOT
Roadways, see <a href='https://txdot.maps.arcgis.com/home/item.html?id=c5f8d03a48074922881f8e2d6154903b' target='_blank' rel='nofollow ugc noopener noreferrer'><span style='color:blue;'>TxDOT Roadways Unsegmented</span></a>.</span></p>

<p style='margin-bottom:0in; background:white;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>This data contains measures. Measures are stored
as M-values within each vertex along the line, in the same way that some
datasets store z-values for the elevation, except that measures store the
distance from the origin, or DFO, along the line. M-enabled networks serve as
frameworks for locating roadway assets along the network using linear
referencing. This data set must be downloaded as a file geodatabase in order to
keep M-Values intact. If downloaded as a shapefile or added to a map from a
connection to ArcGIS online, measures will not be applied to the line.</span></p>

<p style='margin-bottom:0in; background:white;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>Update Frequency: Monthly</span></p>

<p style='margin-bottom:0in; background:white;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>Source: Geospatial Roadway Inventory Database
(GRID)</span></p>

<p style='margin-bottom:0in; background:white;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>Security Level: Public</span></p>
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