Transportation Network Modeling and Analysis with C.Coupled SE Platform
This content outlines the features and functionalities of the C.Coupled SE Platform (CSET Platform) developed by the Connetics Transportation Group. It covers aspects such as interface design, inputs merging, purposes, platform development using Cube, TAZs merging, and network attributes. The platform serves the purpose of answering internal and external questions on cross-county travel, feeding into the D4 PNR/Express model for evaluating inter-county services. It incorporates various components like highway and transit network merging, skims merging, trip merging, and transit network merging. The content discusses the incorporation of the most recent TCRPM and SERPM for 2015 conditions, along with four key applications for highway network management. Additionally, it details the TAZ zoning and attributes, network processes, and input merging.
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Presentation Transcript
C Coupled SE Platform (CSET Platform) SERPM-T TCRPM Connetics Transportation Group 11/2019 1
Interface and Inputs Merge TAZs Merge Networks (Highway and Transit) Merge Skims Merge Trips Outline 2
Purposes Answer internal and external questions on cross county travel Feed into the six-county D4 PNR/Express model for evaluating inter-county services 3
Platform Interface Developed in Cube Uses most recent TCRPM5 and SERPM8 for 2015 conditions Currently does not include 2045 Four key applications Highway Network Merge Skim Merge Trip Merge Transit network Merge 4
Platform Inputs TAZ shapefile Un-loaded and loaded Networks Final Highway Assignment Skims Final Highway Assignment Trips SERPM8 and TCRPM5 shapefiles SERPM and TCRPM networks (input and final loaded networks, input transit networks) SERPM and TCRPM skims SERPM and TCRPM trips (vehicle trips into assignment, currently) (auto skims from the final loaded network) 5
Merged TAZs 4 5 County Zone Type Internal TAZs Dummy TAZs Internal TAZs Dummy TAZs Internal TAZs Dummy TAZs SERPM External TAZs Internal + Dummy TAZs Internal + Dummy TAZs Internal + Dummy TAZs TCRPM External TAZs Zone # 1-1777 1778-1990 1901-2853 2854-2900 2901-4406 4407-4500 4501-4584 4601-4980 4981-5690 5691-6000 6001-6034 6 Palm Beach Broward 1 Miami-Dade SERPM Externals Indian River St. Lucie Martin TCRPM Externals 2 Removed 5 Martin County TAZs from SERPM 3 6
Merged TAZ Attributes 1. TAZ 2. County 3. City 4. TAD 5. Superdistrict 6. District 7. User Origin 8. User Destination 9. Population 2015 10. Employment 2015 11. Population 2045 12. Employment 2045 13. Area Type 14. Block Density 15. Long Term Auto Parking Cost 16. Short Term Auto Parking Cost 7
Merged Networks Process and Inputs Merged Network Attributes A, B nodes Distance Number of lanes Car toll FTC2 Area type County Road name Posted speed Posted time Free flow speed Free flow travel time AM peak congested travel time Off-peak congested travel time PM peak congested travel time Renumber TCRPM network node #s TAZ nodes renumbered as 4601-6434 Other nodes renumbered 50,000+ Merge SERPM and TCRPM Networks Links to delete and nodes to merge (user defined) Clean up nodes and links at the boundary of the SERPM and TCRPM Exclude attributes not needed and create the final merged network 2015 Highway Networks Only 8
Merged Networks TCRPM and SERPM Boundary External TAZs TCRPM (original node number) 1423 1424 1425 1425 1428 1430 1427 1426 TCRPM (merged node number) 6023 6024 6025 6025 6028 6030 6027 6026 SERPM 4508 4507 4506 4505 4504 4503 4502 4501 These zones are no longer needed in the merged network/model 9
Merged Skims Process and Inputs Outputs Travel time, distance and toll cost skims for AM peak, off- peak, PM peak period Drive Alone Toll Skims for AM, OP and PM periods Merge SERPM8 and TCRPM5 skim files in CUBE Calculate the total travel time between SERPM and TCRPM TAZs through the model boundary externals (IE+EI times) Model boundary external TAZs Select the path with the minimum travel time For the same path, extract the distance and toll cost skims Update skims for the dummy/external TAZs with 999.99 values 10
Merged Trips Process and Inputs Outputs Total vehicle trips for the merged network Merge SERPM8 and TCRPM5 trip files in CUBE J Convert internal-external trips to internal trips Allocate SERPM IE trips at the model boundary external TAZs to TCRPM internal TAZs in proportion to the EI trips to the destination TAZ and the total trips Delete the trips at the model boundary external TAZs I 11
