Metra is the largest and busiest commuter rail system outside of New York. It provides a safe, reliable and efficient service that is leading the industry in achieving continuous improvement, innovation and transparency facilitating economic vitality for Northeast Illinois.
Key Technologies used
- Pub/Sub messaging
- Connection state recovery
- Guaranteed delivery & ordering
- Multiplexed WebSockets
Metra Use Case
With over 290,000 passengers relying on the network each day, realtime notifications are published on Metra’s website to keep the public well informed on the timetable, trains’ status and station conditions including parking information.
Reliable realtime functionality at scale
Over 3.5 million people check Metra’s website each day with 2,000 devices online at any one time, which amounts to over 4.5 billion messages being delivered each month. Metra’s previous pub/sub provider struggled to scale to meet this load, particularly during peak periods. With millions of commuters relying on Metra it was essential for all updates to reach the public reliably, and so Metra began looking for a new solution.
The Ably Solution
Premium 24/7 support and unmatched scalability
After assessing alternative vendors, Metra discovered that Ably was not only able to scale effortlessly to meet demand but was a more cost effective solution with improved Quality of Service with message delivery and integrity guarantees. However, what really set Ably apart was the “excellent” customer service they provided to Metra, which allowed commuters to rely on the website’s updates with greater confidence.