CityCyclingEdinburgh Forum » Debate!

Soderberg numbers and relative car use

(166 posts)

  1. Frenchy
    Member

    Impressive numbers! My own Soderberg numbers for 2021 were 2.72 and 3.04.

    I travelled far less by motor vehicle in 2021 than in any year previously. Total distance was just over 2200 km - previous low was 6600 km (records only began in 2018, but it's pretty likely that all previous years were higher than this too).

    However, no commuting by bike has cancelled all that out, in Soderberg number terms. I only cycled on 121 days in 2021 - down from 310ish in 2018 and 19.

    Posted 3 years ago #
  2. HankChief
    Member

    Bravo both - great to see Soderberg numbers giving a useful insight.

    My own number would have been pitiful - I really miss the cycle commute :-(

    Posted 3 years ago #
  3. Arellcat
    Moderator

    I miss my cycle commute for fitness purposes, but I don't miss it for any other reason really. I had to get up at 6.15am most days; it was frankly dangerous in winter; it took an hour and a half every day; it left me with perhaps an hour each evening for doing fun stuff, like reading or playing music; and it meant I spent most Saturdays recharging.

    With WFH being order of the day, I actually commuted only twice in 2021, and both times I went by motorbike (though one commute was to Galashiels, and I didn't want to take the train). I did have to pop into the office a couple of times to clear stuff from my desk, so I cycled those times.

    All told, I managed to cycle 3888km in 2021, which despite my fears, wasn't actually the least distance I've cycled in one year since 2010 when records began.

    Posted 3 years ago #
  4. Arellcat
    Moderator

    For 2022 I finished up with Sodn small = 3.62 and Sodn large = 9.21, both a fair bit lower than I achieved in 2021. Frankly, I couldn't be bothered being incentivised anymore and just did my thing.

    I walked on 42 days which was ten better than 2021, but I cycled on only 192 days, down 18 from last year; collectively I actively travelled on 221 days, which was 15 fewer than last year.

    I also still used public transport only a tiny amount: I took the tram one day when I went to the zoo, and I used the bus on three days. I didn't go on a train at all, though I drove to watch a few. There were also 65 days when I didn't go anywhere, which at least was a 25% improvement on last year.

    2022 was a little bit more motory than 2021. I was in a car on 24 days, and used my motorbike on 39 days. The York Rally was back on, but my sparkly purple recumbent was still indisposed at that time so I drove instead of taking the train. I also drove for a week away on holiday, although I did some walking and cycling on a couple of those days as well.

    I have no idea what my Patella Number was, but I invented a way last winter to layer thick woollen socks against the fronts of my thighs, under my tights, to help keep my knees and quads warmer while cycling, so wearing shorts hasn't been high on my agenda.

    Posted 2 years ago #
  5. Frenchy
    Member

    Wee and big Soderberg numbers for 2022 were 1.66 and 2.18. Down from 2.72 and 3.04 in 2021, and from 3.38 and 4.05 in 2019. My motorised travel patterns are back to pre-pandemic levels, but I'm not commuting anymore, so the number of days cycled is a fraction of what it used to be (88 in 2022, compared to over 300 in 2019.

    2022 was also only the second year since 2014 that I didn't cycle further than the previous year.

    Posted 2 years ago #
  6. HankChief
    Member

    Bravo both. Fascinating stuff.

    I didn't record mine but they would be pitiful...

    Must.do.better.

    Posted 2 years ago #
  7. LaidBack
    Member

    My cycle use is more or less daily but low mileage. Often electric as using a UA. Did enjoy going manual on Fuego after digging it out of basement.
    Very little cycling for pleasure since October (laid low with sinnus headaches, not breathing easily).
    New year resolution is to get back out for fun rather than moving boxes around!
    Car use once as lift.
    Van use twice for delivery - as passenger to Aberdeen and Glasgow (Cargo bike e-credits hit a bit by that!)
    Bus/train use twice a week in city. Usually one way with walk back.
    Long distance more bus than train recently. E-bus to Dundee takes 1 hour 50 and is free for saltire card holders. Average speed only of around 35 mph but does go via Dundee which is 65 miles! Van to Aberdeen only took 2hr 20.

    Posted 2 years ago #
  8. LaidBack
    Member

    Via Perth I mean. Just lost my edit time..

    Posted 2 years ago #
  9. Frenchy
    Member

    I also started keeping track of the amount of money spent on various modes of transport last year:

    Car 26p/km (petrol contribution was 11p/km)
    Bike 14p/km
    Bus 29p/km
    Train 15p/km

    Car cost includes petrol, insurance, road tax, MOT, maintenance and ETA membership.
    Bike cost includes service, parts, a new helmet, Cycling UK and Audax UK memberships.

    Posted 2 years ago #
  10. Frenchy
    Member

    Wee and big Soderberg numbers for 2023 were 1.85 and 2.71, so improvements on 2022, but still nowhere near pre-Covid figures.

    Investment in shiny new Ortlieb panniers meant I spent a 24p/km cycled in 2023, almost double the 2022 figure.

    Posted 1 year ago #
  11. Arellcat
    Moderator

    I finished 2023 with Sodn small = 1.69 and Sodn large = 12.3.

    My private car use was down to 12 days, each time as a passenger, and either for transporting loads or while travelling with family. I did however ride my motorbike on 76 days on account of having fixed the infernal machine, and then having someone to ride with on several occasions.

    I was also still avoiding public transport. I only travelled on a train three times in 2023: once coming back from Glasgow, and a return trip to York for the Rally. I took a bus just once, and that was in May because unbeknownst to myself, I had just caught The Plague and felt awful, and couldn't bear the cycle home from town.

    Cyclingwise, I managed to ride on 112 days, and I walked on 37 days. Both stats are well down on 2022, but winter 2022-23 was a very bad time for my MH, and as noted, I spent a lot of this summer motorbiking instead of cycling. So collectively, I actively travelled on 147 days, compared with 221 in 2022, so not my best performance ever.

    Posted 1 year ago #
  12. Arellcat
    Moderator

    Another year goes by and I am still mostly avoiding using a car, chiefly because I don't have one. I finished the year with Sodn small = 2.58 and Sodn Large = 15.85.

    My 2024 was a much better year than 2023 for actively travelling, and my use of infernal combustion was slightly lower overall despite a series of heroic motorbike rides throughout the year, but riding my motorbike is technically not driving a car for Soderberg Number purposes.

    I had a bad start by being a passenger in a car on day one, but reined myself in until almost the end of February. And even that day was only because my plan of bike+train+bike ended with a flat tyre and no pump two miles after leaving the house. A couple more car days included a trip to Southport and then my first experience of Uber, when bestie and I were on holiday and buses were going to take too long to get around. Some further car days included picking up oil for my motorbike, a mad late evening dash into the Borders to look for aurora borealis (the day after the big event in May), and a couple of trips to the tip, to make it 13 car days in the year. I notched up 64 days on my motorbike, compared with 76 in 2023. This was partly because it's been off the road a couple of times and I've naturally reverted to cycling for the last three months.

    I improved my use of public transport by a whopping 100% – up from 3 days to 6 days, taking the train on three whole days (although one of them was the Ravenglass & Eskdale, which isn't really public transport); I used the tram just once, for work, and I took a bus only twice: once when we'd had enough walking while on holiday, and then when I had a cold a couple of months ago and took my bike onboard the X62 to get home.

    I also improved my walking, and was out on 48 days compared with 37 in 2023. Cycling was up too, to 162 days compared with 112 the year before. But that's still a month's worth of cycling journeys less than 2022. The reasons might have been more motorbiking when I was actually away from home for several days at a time, and also because in 2023 I didn't go anywhere on 126 days while in 2024 I got it down to 73 days. That's not bad, given the complete non-summer when it seemed to rain and rain.

    I have no idea what my Patella Number was, but it was probably in single figures!

    Posted 2 months ago #
  13. HankChief
    Member

    Chapeau Arellcat

    Posted 2 months ago #
  14. Dave
    Member

    Impressive!

    Posted 2 months ago #
  15. Frenchy
    Member

    Wee and big Soderberg numbers for 2024 were 2.17 and 3.75. Both improvements on 2023. The main difference is fewer short car journeys (since the eldest dog no longer wants to go to the weekly greyhound walks, I can walk there and back with the younger two). Actual distance driven was almost identical to 2023. Number of days cycled, and total distance, remain pitifully low, but I am walking more often.

    A combination of low distance cycled, both bikes needing new wheels and the car not getting an MOT in the 2024 calendar year mean that my £/km for driving was lower than for cycling. 25p/km for the car, 38p/km for cycling.

    Posted 2 months ago #
  16. Greenroofer
    Member

    @Arellcat - was the one trip in the tram for work the day you came to visit me :-)

    Posted 2 months ago #

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