How It Went
Graphic Version
Publication
The amount of the data proved challenging Specifically the Stop Times (67 Million Records) has been difficult to publish and serve efficientlyGeneral
Legacy ID
201
How It Went
Graphic Version
The Build
Underestimated the amount of data
Code was written to use asynchronous processes
Process Files and Records One-By-One
Code had to be rewritten to use synchronous processes...
How It Went
Graphic Version
Registered GTFS Feeds
Submitted - 261
Valid End Points - 222
Downloaded Files - 222
How It Went
Graphic Version
Percentage of Participation
All Participating - 0.24
All Invited - 0.29
Top 10 - 0.80
Top 25 - 0.84
Top 50 - 0.74
Top 100 - 0.60
How It Went
Graphic Version
Percentage of Participation By VOMS
VOMS - 0.53
TOP 10 - 0.87
TOP 25 - 0.88
TOP 50 - 0.83
TOP 100 - 0.77
How It Went
Graphic Version
National Transit Map Participation
Total Agencies - 849
Total Invites - 697
Total Respondents - 205
Anticipated Products
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User Guides System Documentation Agency provided routes Inferred Routes (Eventually conflated to road networks) National GTFS Files APIs and Applications to query the dataProducts and Services
Graphic Version
Spatial Participating agencies Agencies by Volume Stops ¼ mile stop buffers ½ mile stop buffers Tabular Agencies Feeds Routes Trips...Building the database
Graphic Version
Each Zip file is opened Each GTFS file is opened and each record is inserted into the NTM database Each record is assigned an NTM ID so they maintain their unique identityScrapping
Graphic Version
The URLs are read from the Registry Each URL points to a zipped GTFS file Each .zip file is saved to a versioned directory