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CTA Train Tracker API

The CTA Train Tracker API allows for querying near-real-time arrival times of Chicago Transit bus trains. The API is in beta and receives arrival time predictions via the QuikTrak rail system monitoring software (trains not currently GPS enabled). Each query responds with predictions for all platforms at a given train station in an XML document.

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CTA Train Tracker: Highlights

Summary
Chicago transit tracking service
Category
Transportation
Tags
Protocols
REST
Data Formats
XML
API home
http://www.transitchicago.com/developers/trai ... 
This is 1 of
3 APIs by Chicago Transit Authority

CTA Train Tracker: Specifications

Functionality

Client Install Required
 
Service Endpoint
lapi.transitchicago.com/api/1.0/ttarrivals.as ...

Signup and Licensing

Signup Requirements
 
Developer Key Required
Yes  
Account Required
 
Commercial Licensing
 
Provider
www.transitchicago.com  
Company
Chicago Transit Authority  
Non-Commercial Lic.
 
Data Licensing
 
Usage Fees
 
Program Fees
 
Certification Program
 
Usage Limits
50,000 transactions per day 
Terms of Service
www.transitchicago.com/developers/terms.aspx 

Security

Authentication Model
API Key 
SSL Support
 
Read-only Without Login
 

Support

Vendor API Kits
 
Community API Kits
 
API Blog
 
Site Blog
 
API Forum
 
Developer Support
webmaster@transitchicago.com 
Console URL
 

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