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(whoosh)

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(single note playing)

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- [Narrator] Including interstates,

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Texas has more than 80,000
miles of roadways statewide.

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The most of any state in the nation.

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Keeping tabs of needed
repairs can be time consuming.

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The Texas Department of Transportation,

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with help from the Texas
A&M Transportation Institute

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is applying proven technologies like LIDAR

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in new ways to facilitate
maintenance activities,

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including reducing assessment time.

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- LIDAR, mobile LIDAR in particular,

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is a tool that allows us to collect all

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of this geometric data at highway speeds,

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so we can throw it on a truck,

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we can drive at highway speeds,

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we can collect all of this geometric data

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and then we can use that data to look

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at how surface drainage will
flow across the roadway.

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- We had a stretcher roadway
that had a lot of run off

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the roads, and we were observing it,

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we were looking at it in the rain,

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but we were concerned that
we were missing something

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that there was something
there based off of

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the wet surface crash reduction program

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and it being a repeat location.

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- The main thing we were trying
to accomplish in particular

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for the Atlanta district,
which is where we started out

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was to identify potentially
critical drainage basins

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on some of their roadways.

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So, where is it on their network

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that the geometry might be contributing

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to hydroplaning potential.

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And so to accomplish it, we
deployed our mobile LIDAR.

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We went up there,

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they told us the roads that
they were interested in,

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and we did kind of a mass network scan,

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collected a lot of data,

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came back in, processed
it, looked at all of it,

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ran it through our algorithms
that we had developed

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and then identified the drainage basins

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that we thought the district should look

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at doing something about on their network.

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- So here he had all the LIDAR data,

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he was running the algorithms and trying

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to find those locations
that we both have incidents

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and there seem to be issues
with water, possibly geometric

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possibly rutting things to that effect,

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and all of that together, the
culmination of several items

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making a location that was considered

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a location that was prone
or possible location.

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- Because we have this technology

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it allows us to go out there
and identify these basins,

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and then work with Tex
DoT to hone that solution

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and say, oh, the real
problem exists at this point,

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and this is why that problem exists.

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Here are some potential
solutions that you can deploy,

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and then it allows Tex DoT
to budget appropriately

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and manage their budgets.

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It might be that you don't need to repave

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three or four miles of the roadway

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if you can just work in maybe
two or three tenths of a mile.

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- This could potentially
provide a bird's eye view

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of locations that are questionable.

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To find those locations,

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that's what this research is about.

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That's the locations
that may need improvement

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that we have a chance to make a difference

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in safety for the traveling public.

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- Wet weather crashes
are a very real issue

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for every user out there,

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and there are things
that the managing agency

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can do to mitigate wet weather crashes,

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and we can give you the data

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that can help make those decisions

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on where to go work and what to do.

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- [Narrator] For more information

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and to find the publications
for this project,

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please visit the Tex DoT Research Library

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at the link show below.