Development of a GPS-Based Sign Inventory Tool for Iowa’s Statewide Management System, May 2011

(2011) Development of a GPS-Based Sign Inventory Tool for Iowa’s Statewide Management System, May 2011. Transportation, Department of


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This report is on state-of-the-art research efforts specific to infrastructure inventory/data collection with sign inventory as a case study. The development of an agency-wide sign inventory is based on feature inventory and location information. Specific to location, a quick and simple location acquisition tool is critical to tying assets to an accurate location-referencing system. This research effort provides a contrast between legacy referencing systems (route and milepost) and global positioning system- (GPS-) based techniques (latitude and longitude) integrated into a geographic information system (GIS) database. A summary comparison of field accuracies using a variety of consumer grade devices is also provided. This research, and the data collection tools developed, are critical in supporting the Iowa Department of Transportation (DOT) Statewide Sign Management System development effort. For the last two years, a Task Force has embarked on a comprehensive effort to develop a sign management system to improve sign quality, as well as to manage all aspects of signage, from request, ordering, fabricating, installing, maintaining, and ultimately removing, and to provide the ability to budget for these key assets on a statewide basis. This effort supported the development of a sign inventory tool and is the beginning of the development of a sign management system to support the Iowa DOT efforts in the consistent, cost effective, and objective decision making process when it comes to signs and their maintenance.

Item Type: Departmental Report
Keywords: GIS sign management—GPS-based sign inventory tool—GPS devices—Iowa sign locations—Iowa sign management system—sign inventory—sign management system—statewide sign management system
Subjects: Transportation
Transportation > Roads and highways
Transportation > Research
Transportation > Design and Construction
ID Code: 14979
Deposited By: Margaret Barr
Deposited On: 10 Sep 2013 16:46
Last Modified: 10 Sep 2013 16:46