Case Study on Applying the Systems Engineering Approach:
Best Practices and Lessons Learned from the Chattanooga SmartBus Project
November 2, 2009
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NOTICE The U.S. Department of Transportation provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. USDOT periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvements. |
1. Report No.
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2. Government Accession No.
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3. Recipient's Catalog No.
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4. Title and Subtitle A Case Study on Applying the Systems Engineering Approach: Best Practices and Lessons Learned from the Chattanooga SmartBus Project |
5. Report Date November 2009 |
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6. Performing Organization Code
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7. Author(s) R. Haas (SAIC), E. Perry (SAIC), J. Rephlo (SAIC) |
8. Performing Organization Report No. |
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9. Performing Organization Name and Address Science Applications International Corporation (SAIC) |
10. Work Unit No. (TRAIS)
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11. Contract or Grant No. Contract No. DTFH61-06-D-00005, |
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12. Sponsoring Agency Name and Address United States Department of Transportation |
13. Type of Report and Period Covered
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14. Sponsoring Agency Code HOIT-1 |
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15. Supplementary Notes Mr. Steve Mortensen, COTM (FTA), Mr. James Pol, COTR (ITS JPO), Ms. Marcia Pincus (ITS JPO). |
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16. Abstract This report presents the results of a review of the systems engineering processes used during the Chattanooga Area Regional Transportation Authority’s (CARTA) SmartBus Project. The Smartbus Project is a comprehensive transit ITS program for the city of Chattanooga, Tennessee involving deployment of a wide array of transit ITS technologies. This review was part of the national evaluation of the SmartBus Project, a project that is being implemented in part with fiscal year (FY03) ITS Integration Program earmark funding and is being evaluated by the US Department of Transportation (USDOT) Intelligent Transportation Systems Joint Program Office (ITS JPO) and the Federal Transit Administration (FTA). This review highlights a number of features of CARTA’s approach
to systems engineering that helped lead to the success of its ITS deployments.
Some of these features were: (a) documenting their long-term vision
for ITS, (b) avoiding the temptation to do too much too fast, (c) testing
systems thoroughly before introducing them to operation, and (d) being
willing to accept schedule delays when needed to help manage deployment
risks. In the end, CARTA’s ITS program helped them evolve from
an organization relying on manual processes and compartmentalized software
systems to one with integrated applications and automated processes. |
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17. Key Words Evaluation, Intelligent Transportation Systems (ITS), Systems Engineering, Data Warehouse |
18. Distribution Statement No restrictions. |
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19. Security Classification (of this report) Unclassified |
20. Security Classification (of this page) Unclassified |
21. No of Pages 34 |
22. Price N/A |
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized.
Table of Contents
2. BACKGROUND ON CARTA AND THE SMARTBUS PROJECT
2.1 Overview of CARTA Operations
2.2 Overview of CARTA ITS Deployments
3. THE CARTA SYSTEMS ENGINEERING PROCESS
3.1 A Brief History and Timeline of CARTA's ITS
3.2 CARTA'S Systems Engineering Process and the "V" Model
3.3 Keys to CARTA's Success
4. CASE STUDIES OF CARTA ITS DEPLOYMENTS
List of Tables
Table 1. CARTA ITS Deployments
List of Figures
Figure 1. System Map of CARTA's Fixed Routes
Figure 2. CARTA 2005 ITS System Overview Diagram
Figure 3. The Systems Engineering "V" Diagram
Figure 4. CARTA's Implementation of the Systems Engineering "V" Diagram
Figure 5. The System Overview Update Table of Contents
Figure 6. A CARTA Bus Arrival Time Sign
Figure 7. CARTA Scheduler at Work
Figure 8. Screenshot Showing TVM Reports Produced by the Data Warehouse