Welcome to Mike on Traffic!

We’re so glad you found us!

On this site, you will find a wide variety of interesting, helpful and informational industry-related articles written by myself (Mike Spack) and other traffic engineering professionals.  To introduce you to our site, we’ve listed five of the most popular posts.

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Learn More About Mike Spack – University of Minnesota Interview

Mike was interviewed by the U of M Department of Civil, Environmental, and Geo-Engineering for a piece in their magazine. In it, Mike talks about his history in the traffic industry and the journey he has been on to creating a successful business in the field.

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Unusual Things Caught on Video

Over the years, we have captured and viewed thousands of days of intersection video for data collection.  Typically, these intersection videos are pretty uneventful. Every once in a while, however, our video cameras capture something strange.

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How Long Should A Valet Parking Zone Be?

We’ve done several traffic impact studies for developments with restaurants on the ground floor that had proposed valet zones.  A nagging question has been, “how much storage is needed in the valet zone to ensure vehicles won’t block the through traffic on the road?”  We couldn’t find any data out there on this topic, so we decided to collect some.

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New Trip Generation Data – Marijuana Dispensaries Drive 10 Times More Traffic Than Specialty Retail Stores

Per square foot (KSF), Marijuana Dispensaries are proving to be one of the biggest retail traffic generators in the United States. In this article, we talk more about the businesses we worked with in Denver, and the data we collected

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Top 6 Ways to Pick Apart a Traffic Study

In this post by Bryant Ficek, PE, PTOE, the Vice President of Spack Consulting, he discusses six different and effective ways a traffic engineer can delve deeper and look further into a traffic study to ensure reliability and consistency of the findings.

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Check out our other websites as well!


The traffic counter’s hub for data collection products

Spack Academy 

Expert training tool for transportation professionals

Spack Consulting 

Consulting firm dedicated to traffic and parking studies, TDM plans, traffic signal timing, and traffic control designs


Free, open source trip generation data



Please note: I reserve the right to delete comments that are offensive or off-topic.

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4 thoughts on “Welcome to Mike on Traffic!

  1. Mike, I was excited to see the trip generation info you have on the MJ industry. Here in rural Josephine County, Oregon we have grow sites, dispensaries and extract facilities popping up at an exponential rate! The challenge naturally is how to determine when/if it is appropriate to condition a traffic study for these facilities. Obviously, ITE book isn’t geared toward rural areas, although we do try to employ it when we can in other scenarios. Any thoughts?

    Many thanks,

    Nora Schwartz
    Planner II
    Josephine County Community Development

    • Hi Nora – I don’t have any specific data for you to use. If you collect any, please share it. My hunch is that the grow sites and extract facilities will operate like other farming operations. You could apply our dispensary data for the first couple of small town dispensaries until you can collect your own data. I assume our data would give you conservative results though if the traffic generation would be limited by a small population. Mike

  2. Hi Mike,

    I recently collected gap study data, but now I can’t find any practical information on how that data can be used for an intersection analysis. I tried doing a search on your site, but I’m still at a loss. Do you have any insights you can pass along?