Average speed

I’ve been thinking about this a bit lately, so I thought I’d share some of my thoughts here. There is a perception that automobiles are quite a bit faster than bicycles. This may or may not be true, depending on how you look at it.

While automobiles undoubtedly have faster acceleration and faster maximum speeds than bicycles, this really only benefits them strongly on highways and on long, wide-open roads. In an urban setting, where there are stop signs, traffic signals, roundabouts, speed bumps, and such – the average speed that an automobile can travel at is not much greater in many cases than that of a bicycle. When you factor in traffic, you often put the average speed of an automobile below that of a bicycle, especially during morning and evening.

For instance, from time to time I’ll meet my wife at New Seasons (grocery store) on the way home from work, and she will be in our car. We will leave at the same time, and I will usually arrive home either as she’s getting out of the car, or just after she’s gone into the apartment – and most of that trip from New Seasons to our apartment is uphill. Granted, she is not a fast driver, but I am also not a fast cyclist (as I’ve mentioned before, on my daily rides the majority of other cyclists whiz by me).

Then there is parking. When we go out in the car, we often get frustrated looping blocks and running around trying to find a place to park. Most of the areas we go out to in the city have sufficient bike parking that we can usually get to where we’re going, walk right up to a bike rack, lock our bikes, and walk a block or two to our final destination. This isn’t always the case, we sometimes have to look around a bit for something to lock our bikes to, but generally it is much easier to create high-volume bike parking than it is to create high-volume car parking. This, this, this, and this are some examples in Portland.

Once again, I think it’s important to mention the topic of Enjoyment. You want to be able to enjoy the time it takes to get somewhere, not to have it simply be a necessary evil. For whatever reason (I notice this in myself, as well as others), automobiles encourage us to be impatient, causing us to not only do stupid things sometimes, but also to feel a sense of urgency to get places, which greatly reduces the ability to enjoy getting where you’re going. For myself, personally, cars just move too fast for me. I have to focus so much on my driving that it’s hard for me to talk or look at scenery or anything, because my driving suffers. Besides, wouldn’t you rather feel the sun on your face, smell the wood fires in the fireplaces, hear the wind in the trees, feel the breeze on your face?

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  • 2whls3spds

    My ex and I used to work at the same hospital. We lived in an apartment about 2 miles (if that) from it. We would both leave the apartment at the same time. She had to walk to the parking lot to get the car, I would grab my bike from under the stairs and head out. She would pass me about 1/4 mile before the turn off to the hospital employee parking lot, I continued on and up the service drive. I would be siting in the window of my shop with a fresh cup of coffee in hand and see her walking up the walkway from the employee parking lot.

    Bicycles are IMHO the most efficient form of transportation for distances under 5 miles in an urban setting. With proper infrastructure I bet you could widen that range to 10 miles.

    Aaron

  • Brent

    Just to affirm this post: my car’s computer shows my average speed since last start. Most of my in-city (Los Angeles) trips end up averaging 15MPH or less, with many being 10-12MPH.

    Bicycling to my uncle’s house, about 10 miles away, with the last mile being up a 4-6 percent grade, takes about 55 minutes, while driving generally takes 45 minutes. The time differential isn’t that great.

  • portlandize.com

    Thanks for that! While I’ve suspected exactly the results you found, I’ve never had a means of exactly calculating it, as I don’t have any kind of device for measuring that on my bike or in my car, and I’m too lazy (and don’t really care enough) to do exact calculations by hand. Thanks for writing!

  • KristenT

    Great post, and so true.

    When I drive to work during the school year, it takes me 25 minutes.

    When I ride the same route to work, no matter what time of year, it takes me 25-30 minutes.

    It takes me much longer to drive home from work in the evenings than the drive in to work, but it still takes me the same amount of time to ride home as it did to ride to work.

    That's just the time spent getting from my driveway to the office driveway. Since we have a private lot, parking either bike or car is not an issue.

    I've come to realize that I waste more time at stop lights and waiting in traffic while driving than any bike or pedestrian could ever hold me up. And the time differential is not so great that it's going to make a difference.

    And there really doesn't need to be a lot of number crunching to figure it out– just look at the clock when you leave somewhere, then look again when you get to your desitnation. (Although, knowing the mileage of your route will help you figure your average… mileage divided by (minutes divided by 60) equals average speed).

  • portlandize.com

    Yeah – I'm a slow cyclist (I usually average somewhere around 8-10mph over a whole trip), and I still get to work almost as quickly as in a car, and faster than on the bus.

    Then there is the consistency – It almost always takes me almost exactly the same amount of time (give or take 5 minutes or less) to get to and from work on a bike. The bus ride varies from about 25 minutes in good traffic to about an hour and fifteen minutes in really bad traffic (accident on the bridge, etc).

    The biggest time variable in my bicycle commute is getting stuck in car traffic downtown :)