CDOT
LIDAR Pilot Project
Statement of Work
1.Objective
Perform a high level analysis of how LiDAR data collection could benefit CDOT’s asset management, GIS, maintenance, Road-X, safety and design systems, and other business units. Provide guidance on next steps to implement a LiDAR data collection program.
2.Background
LiDAR (light detection and ranging) uses sensors attached to a vehicle or aircraft to collect 2000 points of data per second, creating a visual representation of the streets. LiDAR provides data sets that record the location and condition of everything within the instruments field of view. The resulting data can be accessed through ArcGIS or another viewing tool. LiDAR is emerging as a cost-effective alternative to traditional surveying techniques.
Other state DOT’s have implemented LiDAR data collection to build comprehensive lists of all major roadway assets. LiDAR has provided significant time and cost savings versus the prior data collection methods by eliminating the manual trips and measurements required to record asset condition. LiDAR has also provided new data that wasn’t previously available (guardrails, shoulder length, bike infrastructure).
3.Project Description
Project will inform CDOT stakeholders of the benefits of LiDAR data collection and develop the requirements to implement an enterprise LiDAR data collection program.
4.Tasks and Deliverables
- Introduce stakeholders to the benefits of LiDAR data collection.
- Deliverable: Pre-workshop meeting (3 workshops of 1-1/2 hour duration each). Groups attending: Maintenance, Pavement, Safety, Design, Structures, GIS, Surveyors. 3 or 4 individuals from each group - approx. 20 – 25.
- Conduct one week on site workshop.
- Monday Deliverable: Review Inventory Requirements. While on site spend approx. 1 to 2 hours with each group. Determine data needs, business needs, existing inventory practices and present inventory collection costs.
- Tuesday Deliverable: Develop Data Dictionary - Divisions wishing to use LiDAR collection will take part in an all-day event to develop a data dictionary. 2 individuals will attend from each division.
- Wednesday Deliverable: Review Utah RFP/Contract/Proof of Concept - Potential CDOT selection team (2 individuals from each division, approx 8 - 10) will develop a draft RFP and Proof of Concept. The first 2 hours of the all-day meeting will review UDOT's documentation with the remaining 6 hours for draft development.
- Thursday Deliverable – Prepare Draft report and presentation off site.
- Friday Deliverable – Present findings. High level cost of existing data collection practices vs Utah’s LiDAR collection costs. Potential benefits will be based on those achieved by Utah. Presentation will also include draft RFP, shortlisted proof of concept and data dictionary.
5.Project Structure and Management
The Performance and Asset Management Branch Manager will serve as Project Manager.
