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| TRACK: Transportation |
| Development and Maintenance of New Jersey's Statewide GIS Road Layer |
| Jennifer Wolfram, Michael Baker Jr., Inc. |
| NJDOT recently adopted a new data model for their transportation network that will incorporate existing data with more recent spatial and roadway inventory data. These data will encompass the NJDOT statewide road network as well as public roads that fall outside of the NJDOT's jurisdiction. NJDOT and Michael Baker Jr., Inc. have been implementing the new model by incorporating data from sources that have varying attributes and degrees of precision. These data were developed over the course of several years for multiple projects. In some instances these projects were being developed simultaneously, which presented further issues of how to sync the data together. The varying time periods and purposes of these projects led to many issues, some unforeseen. Some specific issues that were faced include transitioning from a single to a dual centerline representation and incorporating varying road types, such as mainline and ramps, while ensuring network connectivity. The focus of this presentation will be on the specific challenges faced during development of this Statewide dataset, as well as lessons learned. A further challenge will be ongoing maintenance of the data. |
| Use of Tracing Tools for Homeland Security Utility Applications |
| Tom Harrington, Mark Willett, Morgen Bullock, Applied Geographics/Wannacomet Water |
| AppGeo developed a Utility Trace Tool for the Wannacomet Water Company (Nantucket) to be used within ArcMap. This tool allows the user to click on the location of a water main break, and the valves that need to be shut off to isolate the break will be highlighted. A list of affected customers will also be generated. The Trace Tool has been used effectively by Wannacomet since January of 2005 for valve isolation and data QA/QC. In June, Wannacomet was picked by the State police to run table top terrorist attack scenario. The scenario involved a biological contaminant being pumped into the water pipe network and contaminating the water system. The Trace Tool was used to efficiently isolate the contaminant. |
| Roadway Inventory Data Migration from Mainframe to Integrated Location Based RDBMS |
| Jon Libby Maine Department of Transportation |
| Maine DOT faced the problem of an aging mainframe roadway inventory database with a Linear Referencing System that was difficult to integrate with newer spatially enabled relational databases and geographic information systems. In 2003 work began to synchronize the mainframe system with the spatial representation of the road network as a precursor to migration to a new integrated system. Maine DOT chose Highways by Exor as the solution to integrate highways management and inventory road assets with full spatial display and query capability. Highways by exor can manage multiple linear referencing systems while maintaining network location and historic data integrity. Once the migration was complete Maine’s Data Warehouse, TIDE was loaded with data from the new Exor database. Future plans include the addition of multiple linear referencing systems such as rail lines, bus routes, ferry lines, and trails. |
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