The Right Frequency

I got an email from a colleague today asking me if there was “a national standard for transit frequency ranges”. Off the top of my head I wasn’t sure, though I know 15 minute headways are generally seen as “frequent” when it comes to the new mapping standard.

So I did a bit of digging and found a paper from the Transportation Research Board. I skimmed through and as I was looking at some of the charts stumbled upon the exact answer I was looking for…a short simple chart that laid out a pretty simple frequency standard for urban service.

I posted this on twitter and many weren’t happy with this one.

So I did some digging to see if I could find more that matched the twitter sentiment. Seems as if the one I had posted was an older version.

There’s a newer version of The Transit Capacity and Quality of Service Manual (TCRP 165) from 2013 that is more comprehensive. The stupid thing is 805 pages but I found what I was looking for…and it wasn’t as simple.  So I took the relevant information and made the chart below. It comes from page 199 to 201 in the PDF.

This made things a bit more detailed and … frequent.

Listen to the Talking Headways Podcast


…the first thing I read every morning is the newsletter to see what’s been out there. It’s great to have an aggregator that pulls everything together so nicely.

Joe Cortright, City Observatory

I think that the email newsletter that you do every morning is the best one that I get, and I get a lot of them.

Mary Newsom, The UNC Charlotte Urban Institute

Really is the best daily urban newsletter out there.

Eric Jaffe, Editorial Director Sidewalk Labs


To Receive The Overhead Wire in Your Inbox Daily

Premium Daily Subscription

The Premium Daily Subscription is our most information packed offering, chock full of over 30 pieces of news every single day. Included are popular features such as the quote of the day and the most read article from the previous day. Also included is our weekly roundup for times when you are strapped for time but need to know what’s going on.

Premium Weekly Subscription

The Premium Weekly Subscription is for professionals constantly under a time crunch. We take the most read items from the week before and share them with subscribers along with more in depth analysis of a single popular topic.

Learn More and Subscribe

Top Links

of the past 48 hours

Video of the Day

Friends of The Overhead Wire

Back To Top

Welcome to The Overhead Wire

What Can We Help You Find?

Try Our Newsletter For Free