tbest gtfs integration

TBEST
GTFS INTEGRATION
June 2016
TBEST TEAM
Public Sponsorship
Research-based
Methodologies
Software Development,
Implementation and Technical
Support
WHY TBEST?
Operations
Trapeze
Others…
Transit Planning Software Gap
Short and
mid-term
TBEST
Long Range
FSUTMS
STOPS
Others…
TBEST SCENARIO FRAMEWORK
Ridership
Estimation
SocioEconomic
Market
Analysis
COA
Support
Data
Strategic
Plan
Analysis
TBEST
Scenarios
Accessibility
Analysis
Automation
Tools
Land Use
Market
Analysis
FTA Title VI
Reporting
1 Users develop alternative
1.
scenarios using Support
Data and Automation
Tools
2 Scenario alternatives are
2.
input into core TBEST
Analysis Engines
TBEST 4.2 FRAMEWORK TOOLS

Manage Scenarios

Model Validation Tools

Socio-Economic Data Management

Transit Network Editor

GTFS Import and Export Tool

Performance Metric Query Tool

Revised Model Calibration (HART)

More Exposed Model Code (New)

Parcel Land Use Data Editor (New)

Access to Transit (New)

Access via Transit (New)
Automation
Tools
TBEST 4.4 FEATURES (SUMMER 2016)

ArcGIS 10.4, Windows 10, SQL Server 2014

Route Realignment Tool

Operations and Policy Settings

Title VI Disparate Analysis

Title VI Flex Route/Jurisdictional Analysis

Fleet Estimates

Layover/Dwell Time

Expanded Cost Formula

Many Improvements!
TBEST GTFS UTILIZATION

GTFS integration first developed in 2010

Streamlines TBEST network coding to be a
fraction of manual coding time

Opened the door to broad TBEST
utilization beyond TDP applications

The TBEST GTFS-derived network
structure supports key editing, modeling,
analysis functions:
o
Network path algorithm
o
Walk access assessment
o
Service-level definition
Ridership
Estimation
SocioEconomic
Market
Analysis
COA
TBEST
Editable
Network
Strategic
Plan
Analysis
Accessibility
Analysis
Land Use
Market
Analysis
FTA Title VI
Reporting
TBEST GTFS INTEROPERABILITY FEATURES
1
1.
2
2.
Network Import

Converts trip-based feed to a time-period based aggregation of trips and
service levels

Users select service periods and routes to import into TBEST
Network Editing

3
3.

Edit service levels, re-align routes, add new routes, add model specific
variables (special generators, transfer stations, route type, mode)
Network Export

Creates a GTFS feed from the service levels in TBEST time periods

Synthesizes arrival and departure times based on route pattern headway
and service span per time period
Requires no ArcGIS extensions or 3rd party tools
GTFS OBSTACLES FOR TRANSIT MODELING

GTFS feeds can be complicated: How to determine what is the “average network”?


GTFS data files/fields are often optional


TBEST allows users to visually QA/QC the imported routes/service levels
GTFS feed structures can vary greatly between transit agencies


TBEST GTFS import is not dependent on optional GTFS files/fields
GTFS source data can be inaccurate


TBEST allows the user to select which Service ID’s to build into the network
TBEST accommodates most structures and exports GTFS to a standard format
GTFS source data does not contain some important modeling attributes

TBEST networks contain important model attributes (model validation, BRT scoring,
route types/modes, stop special generators/amenities, transfer stations)
TBEST GTFS NETWORK IMPORT WORKFLOW
1
1.
Obtain the source GTFS from the agency or other source
2
2.
Determine which GTFS Service ID’s will define the network
o
Which Service ID’s represent an “average” or “peak” network?
May need to ask agency for clarification
3
3.
Extend the GTFS for APC data import or network segmentation add stop_ridership.txt and/or timepoints.txt files (optional)
4
4.
Filter the GTFS routes/service from the input Service ID’s
5
5.
Select the GTFS routes and import into the target scenario
TBEST GTFS IMPORT WORKFLOW – UPDATE MODES
A
1.
B
2.
Base Network Creation
o
First time creating a network
o
Creates validation collections (route pattern groupings for observed
ridership)
Network Maintenance
o
Overwrite existing routes – syncs imported routes with TBEST
validation collections
o
Insert new routes – Adds the GTFS route to the TBEST network
o
Transfer TBEST Attributes Option – Route Type, Mode, Special
Generators, Amenities, Transfer Stations are transferred from
replaced routes to new route service
TBEST GTFS NETWORK IMPORT TOOL UI
1.
Select the source GTFS zip file and target TBEST
Transit System and Scenarios
2.
Show Service ID’s within the GTFS and select those
that represent the average network
3.
Filter the GTFS routes/service for the input Service
ID’s and select the GTFS routes and import into the
target scenario
TBEST GTFS NETWORK IMPORT PROCESSING
1

2

3

Stage Source and Target Files

Load GTFS text files into TBEST GTFS staging SQL Server database

Copy target TBEST scenario for route loading
Aggregate Service

Maintains GTFS network structure with multiple route patterns per route direction

Retains stop name/description, route names, pattern names

Selected input GTFS Service ID’s are combined and aggregated at the route pattern level

Aggregates GTFS scheduled service by time period (trips, IVTT, service span)

Information on individual trips is eliminated during import

Insert network and service attributes into TBEST scenario database (SQL Server)
Build Network Features

Segments route patterns if time points are defined in the GTFS

Builds route-able relationship between stop locations, segments, route patterns

Insert GTFS stop and route pattern geometry (ESRI personal geodatabase)
TBEST – SCENARIO NETWORK
TBEST NETWORK EDITING
Base Network Creation
1.
Create the Base Year Development scenario
2.
Import base transit agency GTFS
3.
Quality check GTFS import
4.
Use TBEST Network Editor to define Route Types, Modes, Transfer Stations, Special
Generators and Amenities
5.
Run a referenced TBEST model
6.
Validate TBEST Transit System using SE growth rates and observed ridership
TBEST NETWORK EDITING
Alternative Network
1.
Create TBEST alternative scenario by copying base network scenario
2.
Input new service
3.
o
New routes/patterns
o
New stops
o
Route extensions
Modify existing service
o
Service Span
o
Headway
o
Realign routes
o
Remove routes, segments, stops
TBEST NETWORK EXPORT TO GTFS
 Export
modified TBEST network to GTFS
 TBEST
synthesizes trips with arrival and departure times within each
time period
 Creates
a simplified GTFS with only one Service ID per Weekday,
Saturday and Sunday

Simplified GTFS export structure reduces complication in service parsing
for external applications

TBEST Night time period is a twelve hour span with service in the preAM and post-PM peak periods
TBEST EXPORTED GTFS
 Standard
GTFS tables
– simplified structure
(no
calendar_dates.txt)
 Calendar.txt
contains
only three service
ID’s
TBEST EXTENDS THE GTFS EXPORT

The TBEST GTFS export contains additional data which may add value to modeling applications

Consistent with the FDOT D7 GIS Architecture

Export data can be expanded support other applications (Special Generators, Peak and Off Peak
Route Headway, etc.)
1
1.
2
2.
Stops.txt
o
Location_type (transfer station)
o
Shelter
o
Bike_rack
o
Trash_can
o
Sign
o
Bench
o
Park-n-Ride Parking Spaces
o
Boardings (predicted TBEST weekday boardings)
Routes.txt
o
Average Daily Ridership (predicted TBEST weekday boardings)
o
Route Type and Mode
TBEST - GTFS EDITOR TRANSIT SYSTEM

TBEST Transit System created for GTFS editing only

Streamlines workflow to focus on network editing only:
1.
Install TBEST
2.
Load GTFSEditor.tds
3.
Import GTFS into TBEST scenario
4.
Prepare network edits in TBEST
5.
Export scenario network to GTFS

TBEST socio-economic data builds are not required and analysis functions will
be inoperable

GTFS export would not contain TBEST boardings estimates

Will make GTFSEditor.tds file available in TBEST 4.4
TBEST - GTFS EDITOR TRANSIT SYSTEM
QUESTIONS?
Chris Wiglesworth, FDOT Project Manager
Email: [email protected]
Phone: (850) 414-4532
Rodney Bunner, Solutions Manager
Email: [email protected]
Phone: (727) 455-4059
www.tbest.org
www.myserviceedge.com