Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages and tradeoffs considered for the project. • Benefits – Significant efficiencies to be gained by this project include: - Fewer deaths - Fewer accidents - Safer overall travel • Limitations – New data sets are generated every 15 minutes. System cycle time is fixed at 15 minutes. “Current” weather is defined as the data obtained at the beginning of a 15-minute cycle. However, weather forecasts from 30 minutes to 48 hours pose no problem. • Advantages – The geo-referenced data set is relatively easy to integrate; also takes advantages of many sources of raw data. • Trade-offs made – Limitations identified are acceptable.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages and tradeoffs considered for the project. • Benefits – Significant efficiencies to be gained by this project include: - Fewer deaths - Fewer accidents • Limitations – Limited coverage, especially for visibility events such as fog and smoke. • Advantages – Reflects an approach designed to minimize risk. This includes: - Use of a cost-effective approach that builds upon previous FDOT investments. - 17 RWIS sites are currently being deployed, installed and integrated in Northern Florida. The equipment selected for the iFlorida project will be from the same vendor as the Northern Florida project. As all weather- related equipment in Northern Florida should be installed and integrated prior to the deployment of iFlorida-related weather equipment, installation and integration challenges will likely be minimized. • Trade-offs made – Density of sites versus coverage issues was analyzed, thus a balanced approach is presented.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages and tradeoffs considered for the project. • Benefits – Significant efficiencies to be gained by this project include: - Improved operations support - Overall increase in situational awareness - Decrease in incident and event response times - Decrease in time to clear incidents and events - Improved coordination - More data and increased CCTV coverage available to a larger number of agencies • Limitations – The density of coverage on arterials is limited. • Advantages – Reflect an integrated regional approach to operations that includes: - Relocation of TMC to existing Orlando Operations Center builds upon integrated approach to operations - Supports Orlando’s single operations center investment strategy • Trade-offs made – The City of Orlando performed a single versus dual facility mode of operation analysis. Results indicated that a single facility was more cost effective and efficient.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages and tradeoffs considered for the project. • Benefits – Test the effectiveness of a fully automated system. • Limitations – Not cost-effective to monitor conditions when roads are underwater. • Advantages – Removes operators from monitoring functions and provides a strong security environment for testing exercises. • Trade-offs made – Cost versus scale of monitoring.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages, and tradeoffs considered for the project. • Benefits – Improved traveler information and enhanced traffic operations support. • Limitations – Information is only as good as the input data (in terms of content, coverage and quality). • Advantages – Keeping humans in the operational loop makes the system significantly less risky from a development standpoint as compared to a fully automated system. • Trade-offs made – Extent of automation versus operator cognitive workload.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, advantages, and tradeoffs considered for the project. • Benefits – Increased capability for real-time reporting, with the addition of images to assist in the confirmation of TTMS data.
Figure 3.7.1: Telemetered Traffic Monitoring Sites for EOC Real-Time Polling
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, disadvantages, alternatives and tradeoffs considered for the deployment. • Benefits – Improved information for the Central Florida 511 system and complete coverage for 511 statewide. Traffic Operations Management will be improved through new coverage capabilities and the availability of additional/improved information. • Limitations – Detailed 511 information will be limited to the metro areas with existing regional 511 systems. • Advantages – The major advantages are that data will be available on a real-time basis to travelers, and that RTMC staff will have more information and better tools to provide information and manage traffic. • Trade-offs made – To support the needs and desires of the community a 511 operator will be utilized to record messages for posting to the 511 service. This is in lieu of there being a completely automated system.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, disadvantages, alternatives and tradeoffs considered for the deployment. • Benefits – Improved travel reliability, better operations and capital planning, expanded uses/users of data • Limitations –The data warehouse is currently under development. Specific limitations have not been identified to this point beyond the limitations of storage capacity. • Advantages – The major advantage is that the data warehouse will provide a single repository for project data. • Trade-offs made –The data warehouse is currently under development and tradeoffs have not been made yet.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, disadvantages, alternatives and tradeoffs considered for the deployment. • Benefits – The benefits expected to result from this deployment are discussed in the previous section. • Limitations – The primary limitation is that full coverage of all roadways will not be achieved. Only 50% of key arterials will have coverage. The density of coverage on both limited access facilities and arterials will be limited. • Advantages – The approach being implemented will build off of existing investments (e.g., use of the OOCEA Data Server for data analysis). In addition, the procurement has been structured to supply hardware and communications infrastructure elements. This will reduce the level of risk because the requirements for what needs to be provided are relatively concise. The contract is for design and deployment only, with all maintenance activities contracted out under a separate effort. • Trade-offs made – Various technologies for calculating roadway segment travel times have been tested in central Florida. It has been demonstrated that transponder tag readers and license plate readers perform similarly and that both would likely meet the data collection needs associated with this deployment. As such, the selection of technology used to conduct the probe data collection portion of the project is being left up to the design-build firm in order to obtain the maximum price/performance benefit. Moreover, a conscious effort was made to balance the density versus coverage of these data collection devices.
Analysis of the Proposed System. This section provides an analysis of the benefits, limitations, disadvantages, alternatives, and tradeoffs considered for the deployment. • Benefits – Improved travel reliability, better operations and capital planning, expanded uses/users of data. • Limitations – Since the procurement is still under development, no limitations have as of yet been identified. However, limitations will likely relate directly to the tradeoffs made with respect to functionality, coverage, capacity, open protocol, security, and cost. • Advantages – The major advantage is that it will be possible to transmit/receive data on a real-time basis from in-trip vehicles. • Trade-offs made – Trade-offs will need to be made between functionality, coverage, capacity, open protocol, security, and cost.
