Mobile Data Terminals (2007) / Chapter Skim
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9Chapter three presents a summary of the survey responses and a synthesis of the survey findings. It also provides references to supportive information and database reports in the appendices.
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consolidated results are presented in Table 3, listing the number of transit agencies reporting by MDT make and model, aggregated by mode choice and the number of MDTs reported currently deployed and those expected to be deployed within the year. A report from the MDT database presenting the number of MDT models installed at transit agencies, sorted by MDT 10 manufacturer and model, can be found in Appendix A2, Report A2-C2, "Manufacturer and Model." INTELLIGENT TRANSPORTATION SYSTEM SUPPLIERS Most respondents who indicated that they had deployed MDTs also identified an ITS supplier and their product or service from the drop down list.
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11 case, the number of MDT installations was added to provide the reader with a sense of the scale of the deployment at the transit property. These reports are in the Appendix A2, as Report A2-D1, "ITS Supplier -- Service by Supplier" and Report A2-D2, "ITS Supplier -- Service by State." MOBILE DATA TERMINAL FUNCTIONALITY Survey respondents reported on MDT functions for both fixed-route and paratransit operations.
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Demand-Response Service Fifteen of the 16 respondents reporting on using MDTs for paratransit service noted that they used the MDTs to download the drivers' manifest to the vehicle, and that schedule changes were automatically updated to and from the MDT. Operational actions by the driver (e.g., sign-on and start run)
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13 communications. Polling rates of 60 s and less, as indicated in Figure 4, are well suited to predicting arrival time for customer information systems.
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services. The survey indicated that 39% of the respondents use MDTs to measure on-time performance in both fixedroute and paratransit service configurations.
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15 etary data collection and data manipulation sometimes found in the transit industry. A number of experienced providers called for better displays on MDTs, especially when mapping and AVL systems were integrated on the MDT.
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