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Steward system

Steward system. Seokjoo Lee University of Florida seokjoo@ufl.edu. Table of contents. System configuration Operation Management and expansion Migration Hotter program. Steward System configuration. Steward data flow.

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Steward system

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  1. Steward system Seokjoo Lee University of Floridaseokjoo@ufl.edu

  2. Table of contents • System configuration • Operation • Management and expansion • Migration • Hotter program

  3. Steward System configuration

  4. Steward data flow Every day, TSS data are delivered from D2, D4 and D6 into Steward. Data sizes are 100MB, 230MB and 110MB each.

  5. Steward system configuration-ETL(1) • FTP server - Filezila FTP server version 0.9.30 beta version is installed to serve the TSS data transfer from each district. - C:\Steward_ftp is assigned for the FTP storage - Each district can access C:\Steward_ftp\DistrctX folder for its file transfer. - Host IP: cdw880.ce.ufl.edu Administrator User ID: cdw Administrator Password: trc513 District User ID: cdw_user_d1 ~ cdw_user_d8 District Password: steward08 • Data backup - 2BrightSpark SyncBack version 3.2.19.0 is used to backup FTP folders into local file storage daily - Two copies of backup are created into two local file storages (external hard drive: 1GByte each, USB interface)

  6. Steward system configuration-ETL(2) • Data transformation - Custom-build SunETLUtility is used to transform the raw TSS data into the aggregated Steward data format - SunETLUtility can be executed in command-line or stand-alone program. - SunETLUtility needs the following subfolders: FacilityDataFolder: Input facility data folder ToConvertFolder: Input TSS data folder ConvertedDataFolder: Output folder for converted data/report GroupDataFolder: Output folder for group data - SunETLUtility command line format: SunETLUtility /dDx /iInputDataFolder /oOutputDataFolder " example) SunETLUtility /d"D2" /i"c:\D2Data" /o"c:\Steward\Input"

  7. Steward system configuration-DB(1) • Steward database tools - Oracle Database 10g 10.2.0.1.0 Enterprise edition - Oracle Warehouse Builder 10g 10.2.0.1.311: GUI interface - Oracle Workflow 2.6.4.0.0: Scheduler • Steward database/web server - Dell Optiplex GX620 - Pentium 4 3.2GHz/ 4GB Ram/Windows XP3 SP3 - Seagate 160GB HDD (SATA I) for Oracle SW - Seagate 500GB HDD (SATA II) for database 1Oracle patch version 10.2.0.3 is expected to be used. metalink

  8. Steward system configuration-DB(2) • Steward DB tables - Design Strategy for Steward database -- Keep the simple architecture to avoid the costly joins -- Allow duplicate data tables/views rather than on-the-fly computations - Fact tables (Cubes) -- Station-level tables: TSS_5min, TSS_15min and TSS_1hr -- Lane-level tables: TSS_5min_lane, TSS_15min_lane and TSS_1hr_lane - Dimension tables (Dimension) -- date_ref, time_ref, tss_station

  9. Steward system configuration-DB(3) - Materialized views: -- SYSTEM_LANE_5MIN, SYSTEM_LANE_15MIN, SYSTEM_LANE_1HR -- VOLUME_MAP_5MIN, VOLUME_MAP_15MIN, VOLUME_MAP_1HR -- TRAFFIC_COUNTS_5MIN, TRAFFIC_COUNTS_15MIN, TRAFFIC_COUNTS_1HR -- PM_5MIN, TT_REL_5MIN -- MAX_FLOW_5MIN, MAX_FLOW_15MIN, MAX_FLOW_1HR -- EFF_DET_LEN_5MIN, EFF_DET_LEN_15MIN, EFF_DET_LEN_1HR - Materialized views are partitioned by Date and District and indexed by Station_ID, Hour and Date - Fact tables will be partitioned and indexed on next major revision - Materialized views are refreshed on demand. They will be updated into on-commit on next major revision

  10. Steward system configuration-Web(1) • Web design concepts - Minimize the on-the-fly computations by using pre-developed materialized views - Minimize the complex queries on the client side by using the query functions where the materialized are not applicable. • Steward web tools - Microsoft Internet Information Services 5.1 for web server - Text-based ASP, JavaScript, HTML

  11. Steward system configuration-Web(2) • Steward web architecture - Home - Overview - Resources - Maps - District data -- TSS Facility-Level Reports -- TSS Section-Level Reports -- TSS Station-Level Reports -- TSS ETL Reports -- TVT Station-Level Reports -- TVT ETL Reports -- Report Archive

  12. Steward system configuration-Web(3) • Steward web pages

  13. Steward operations -ETL process (1) • D2, D4 and D6 pushes archived TSS data into Steward FTP server daily at 3AM, 2AM and 2AM. - Average file sizes are 15MB, 30MB and 15MB in compressed file format (100MB, 230MB and 110MB in uncompressed format) - File location: c:\Steward_FTP\DistrictX • File backup and uncompressing - Backup location: u:\DISTRICT_DATA\Districtx\rawdata - Uncompressing location: c:\Program Files\TRC\SunETLUtility\ToConvert • Data transformation - Raw traffic data are processed using custom program (SunETLUtility) - Process the data files -- Assign Station/Lane ID -- Aggregated 1min, 5min, 15min and 60min lane/station data -- Run the basic quality check

  14. Steward operations -ETL process (2) -- One input data file would generate one converted file, one daily report, eight aggregated data file. For example, TSS-03032009--1.dat from District 2 would generate the following output files ConvertedData\D2_TSS-03032009-0.csv ConvertedData\D2_TSS-03032009-DailyReport.Log GroupData\D2_TSS-03032009-1S.csv GroupData\D2_TSS-03032009-1L.csv GroupData\D2_TSS-03032009-5S.csv GroupData\D2_TSS-03032009-5L.csv GroupData\D2_TSS-03032009-15S.csv GroupData\D2_TSS-03032009-15L.csv GroupData\D2_TSS-03032009-60S.csv GroupData\D2_TSS-03032009-60L.csv - Report process results to Steward Admin and users - Archive all the processed files and prepare the data loading -- Backup location: u:\DISTRICT_DATA\Districtx\processeddata\ConvertedData u:\DISTRICT_DATA\Districtx\processeddata\GroupData • Data backup - Steward_FTP folder are backup into U drive at 4AM daily - U drive are back-up into the identical V drive at 5AM daily

  15. Steward operations -ETL process (3) • Data loading - Oracle Process Flow modules are used to load TSS data files - For one raw TSS file, six processed data files are loaded (5min, 15min, 60min station and lane data) - Oracle Process Flow modules can be executable manually using Control Center or automatically using Oracle Schedules

  16. Steward operations -ETL process (4) • After data uploading, data changes can be verified from their table row counts.

  17. Steward operations -ETL process (5) • Database performance can be monitored from Oracle Enterprise Manager

  18. Steward operations - Current status • Traffic data from districts *: Daily data are not received, data CRC error or our ftp server issues.

  19. Steward operations -Web • Steward web statistics

  20. Management plan • Daily data loading - Daily transform report by email • DB performance - Oracle enterprise manager console • Web statistics - WebLog Expert Lite version 5.6

  21. Expansion scenario (1) • New data for CDW: three possible scenarios • Limited information on district changes/information - New HOT lanes in District 4 and 6 - New facility (I-75) in District 4 - Limited information (I-295 milepost) in District 2

  22. Expansion scenario (2) • Expansion might cause the performance issues on preprocessing, DB performance or web interface. • Unexpected system configurations could impact the system modifications: - Two HOT lanes in District 4 and District 6 - HOT lanes in NB are operational but SB will be implemented later - 30sec aggregation interval in D5

  23. Expansion scenario (3) • New analysis report - New materialized views needs be created. - Web interface needs be revised

  24. Statewide traffic CDW at other states • Rob Hranac at Berkeley Transportation Systems defines the progress of Archived Data User Service (ADUS) as follows: - Data  Reports (for decision support system)  Application (web 2.0)  Prediction  Control Automation • Most of states are in the stage 2 (Report) and move toward stage 3 (Application) • PeMS at California are developing integration of traffic data and incident data on GIS. • PeMS are trying to integrate the transportation simulation model with the traffic data • WisTransPortal integrated traffic data database with lane closure system • U of Maryland developed traffic data warehouse for Washigton DC, Maryland and Virginia • U of Maryland developed the web-based analytical tools for the traffic data and incident data

  25. Migration plan • Web service - Web sources are server independent and ready to migrate • Database - Migrate Oracle warehouse builder metadata - TSS data will be re-loaded rather than table migration - TSS data tables will be reconfigured for Index and partitions - Refresh method for TSS materialized views will be reconfigured from on-demand to on-commit • ETL process - ETL process will be customized for new system

  26. Hotter program • Utility program for analyzing the operation of High Occupancy Toll (HOT) lanes within SunGuide traffic management systems in Florida. • I-95 in D4 and D6 has HOV lanes on SB and HOT lanes on NB • Input data are generated from Steward manually • Hotter program generates analysis report on HOV/HOT lanes in comma-delimited (CSV) file format • Results may be plotted if desired from the analysis files

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