Road Inventory Data Collection Re-engineering Collected Data Items (more than 50 items): –Street Names. –Pavement width, number of lanes, etc. –Bike path, sidewalk, etc. –Signs including Stop sign, Speed Limit, Milepost, etc. –Traffic signals –Intersection, interesting street names, etc. Features include: –Point features; Linear features Technologies to be used: –Database management, GPS/GIS real-time navigation and mapping, Real-time Distance Measuring Instrument (DMI), Digital Camera, and image processing. Milepoint A vehicle moving speed miles per hour.

Re-engineering Road Characteristics Data Collection – current operation Manual Quality Control Manual Data Entry Database Choose the routes to collect data with maps Carry hard-copy maps and pre- inventory for data collection. Collect RC data on Highway Record data manually in the field Goal of Project: Improve Data Quality, Operation Efficiency, and Safety More than 100 data items to be collected at one milepoit (Number of lanes, pavement width, overpass, sidewalk, bike path, signs such as stop and speed limit signs, signals…etc.)

Re-engineering Road Characteristics Data Collection – future operation Hardware systems Integrated System 1. Laptop Computer 2. Global Position System 3. Distance Measurement Instrument 4. Other advanced technologies (voice command system, digital camcorder, wireless…etc.) Software systems 1. GPS/GIS real-time mapping and navigation capabilities 2. Real-time data quality control for field data collection. 3. Database Management system 4. Other advanced technologies (real- time image processing and feature recognition algorithms and functions and voice recognition) Image processing & feature recognition algorithms

Prototype - RC Data Collection System (Cont.) Database Management component GIS/GPS Real-time Navigation and Mapping component A Milepoint for RC Inventory Detailed RC Inventory at a milepoint