1. Enterprise Data Model for Transportation Planning Presentation to 2009 TRB Planning Application Conference Minhua Wang, Ph.D. Citilabs, Inc. mwang@citilabs.com

2. Why Enterprise Data Model is Needed? Transportation modeling moving into enterprise environment Maintain a single repository for network data and modeling data Allow multiple users to edit the same network data Allow multiple users to access the same modeling data Implement enterprise wide security policy on data maintenance, data access and data management Manage scenarios in an enterprise environment Integrate with enterprise GIS system Transportation modeling data is available enterprise wide Promote enterprise data sharing Eliminate data redundancy Reduce cost for data collection

3. What is Enterprise Data Model? Master Network Model Single network coverage Support multi-modal network Support multi-scenario network Support multi-year network Public Transit Network Data Model Junction (Intersection) Data Model Scenario Management Data Model Transportation Metadata Model

4. How Enterprise Data Model is Implemented with Transportation Planning Software Enterprise Data Management Enterprise Network Editing Enterprise System Integration (e.g., Enterprise GIS integration) Complete Enterprise Transportation Modeling Solution

5. Database Management Tools Server based database management Data creation Data Indexing Data versioning Data access control: user roles and user privileges Concurrent transactional control Data publishing: publish web services Database replications Data backup/restore and disaster recovery Geodatabase Manager Interface Tools Metadata management Input/output model data controls Data Repository Management Administrative tools for database management

6. Data Editing in Enterprise Environment Data Versioning Support concurrent editing by multiple users -Versioning data for different users -Reconcile conflicts with base data Data Scenario Management Control data editing on scenario based data -Creates child scenario data from parent scenario -Track Parent - Child scenario relationships within database Data Editing Tools Network Editor - Edit highway network PT Editor - Edit PT network and time tabling data Junction Editor - Edit junction and movement data

7. Example Enterprise Database Solution Architecture Cube Enterprise Database Cube Enterprise Database Cube File Systems Remote Transportation Database Remote Transportation Database Cube Base Cube ArcGIS Extensions Cube Web Data Manager Scenario Manager Application Manager Junction Analyzer Accessibilit y Analyzer Accessibilit y Analyzer ArcGIS Services Data Web Services Cube Voyager Cube Data Connector Software Products Software Components Functional Libraries Data Repositories Data Services

8. Contact Information: Minhua Wang, Ph.D. Citilabs, Inc. mwang@citilabs.com 703-944-4192