Mapping and Surveying Technology Innovations
Wednesday, October 11, 2017
10 a.m. - 11:30 a.m. EDT
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Where in the World Are We?
The National Geodetic Survey is in the process of developing new datums for the National Spatial Reference System.
These new datums are going to have significant impact on the positions of our monuments and control. This presentation
will provide a look into the new NGS datums, how they will be implemented, and what we can expect to see on
positional difference when we use the new datum. We will also discuss the use of Low Distortion Map Projections, and
how ODOT will help solve the issue of grid to ground scaling for design grade mapping.
Innovative Mobile LiDAR Control: Safely Surveying the "Can of Worms"
Mobile LiDAR is now a proven and accepted method to rapidly, accurately, and safely collect data for a variety of
transportation needs. A well-planned and executed control layout can support accuracies of less than one centimeter.
However, setting survey control along the roadway is typically among the most time-consuming, expensive, and
dangerous parts of a mobile LiDAR project. This presentation will discuss specific challenges of the I-35 & US 53
interchange in Duluth, Minnesota. It will describe the specific challenges and how an innovative combination of rotary-
wing aerial LiDAR and survey-grade mobile LiDAR was used to meet the project's requirements for accuracy and
A Whole New World of Mapping & Sensing: From Asset Management to Vehicle Sensing for Collision Avoidance
Geospatial data acquisition capabilities have seen phenomenal developments in the past decade. Optical imaging has
become ubiquitous and, more importantly, has seen extraordinary improvement in performance. Inexpensive sensors
can collect high resolution imagery at high rates. Active imaging sensors, such as LiDAR, provide a powerful way to
directly observe the environment by delivering accurate point clouds. The mobility of the sensor platforms combined
with the enormous sensing and computing power enables real-time mapping of the environment and extends the
mapping into tracking moving objects. This presentation offers an overview of the state-of-the-art in sensing, with a
focus on smart city and autonomous vehicles.
Invited SpeakerContinental Mapping Consultants
Jerry Garrison, Jerry.Garrison@dot.ohio.gov