Your NPR news source

Sarah Jindra: Decoding Chicago's traffic reports (FAQ)

SHARE Sarah Jindra: Decoding Chicago's traffic reports (FAQ)
Sarah Jindra: Decoding Chicago's traffic reports (FAQ)

Our great traffic reporter Sarah Jindra spent some extra time on the clock this week to put together a PDF for Chicago traffic beginners. Even if you are a long-time Chicagoan, there are probably some parts of the traffic reports that baffle you. Well, Jindra did the dirty work and now you can use this resource to be the smartest guy in your car. This is the best PDF I’ve ever opened.

Here’s a couple highlights from the FAQ:

Q: How are the travel times determined?

A: There are sensors in the roadways that track how fast or slow drivers are going. Really smart people created equations that automatically calculate travel times based on the sensor data.

Q: What’s the extension? A: The part of The Eisenhower (I-290) that runs between I-355 and I-294.

Q: I always miss my road! How do I know when it’s coming? A: I read travel times in the same order every single report. Most other traffic reporters in Chicago have an order they use as well. Find out what the road before yours is, and listen up! So enjoy and remember to thank Sarah next time you have the chance.

PDF: Decoding Chicago Traffic Reports

The Latest
It’s election day, and hundreds of teens are serving as election judges. The U.S. Supreme Court will hear arguments today in a case that could impact more than one million student people in Illinois with college debt. Local groups are stepping up to provide shelter for asylum seekers arriving in Chicago.