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insane_dreamer 4 days ago

cars were just as plentiful in the 70s and 80s as now and yet parents weren't nearly as worried about it as they are now

and kids were much more on bikes then than now -- which is a rare sight unless it's parents with their little kids on a Sunday ride in the park

yesfitz 4 days ago | parent | next [-]

Based on the census, cars were NOT just as plentiful. The number of cars per household has risen slightly[1] (although they stop keeping track after 3 cars), but the number of households have doubled[2] between 1970 and 2020.

As for the bikes, it's a vicious cycle compounded by distracted driving via cell phone. Less bikes means less drivers expecting to see a bike, making it more dangerous for bikes, meaning less bikes.

1: https://www.bts.gov/archive/publications/passenger_travel_20... 2: https://fred.stlouisfed.org/series/TTLHH

insane_dreamer 4 days ago | parent [-]

sure, population has grown, but unless density has increased substantially, then on any given ride you're likely to encounter similar number of vehicles than before, not counting major / commute roads of course, but those aren't the ones kids are riding on

also, bike lanes were virtually non-existent back then

yesfitz 4 days ago | parent [-]

Fantastic news, population density has increased substantially![1] 57.5 average people/square mile in 1970, growing to 93.8 in 2020.

1: https://www.census.gov/data/tables/time-series/dec/density-d...

insane_dreamer 3 days ago | parent | next [-]

That's not the density I was referring to. That doesn't measure city/suburb density. We have many more suburbs (therefore more density overall) but the number of houses within a suburb (where a child might be riding around) is not likely to have increased.

yesfitz 3 days ago | parent [-]

I think we have a disagreement in terms beyond "density". I'm talking about bicycle as transportation, and I believe you may be talking about bicycle as recreation.

To clarify, transportation is a means to get you to a destination. I don't know where you live, but I haven't lived in or ever even seen a suburb that provides all the destinations that a child (assuming they're old enough to ride a bike alone) would want to bike to.

Friends live in different neighborhoods. The mall certainly wasn't in my neighborhood. The video store, my church, the woods, the local pool, the public library, all required crossing streets which have become busier and busier.

floren 3 days ago | parent | prev [-]

The size of the United States has not increased since 1970, but the number of people has. So yes, no shit, (US pop / US land area) has gone up. But the question is, "is the average neighborhood more dense than it was in 1970", and that's not a question you can answer from that number, because obviously cities & towns have spread since then.

If you want an intellectually honest comparison, take a look at the District of Columbia, which is basically 100% city and has been for many decades. It's gone down since 1970.

yesfitz 3 days ago | parent [-]

No one asked that question except for you.

The other commenter and I were talking about cars.

Car ownership rates increased slightly, number of households nearly doubled, and average population density went up in every state except DC. There are more cars. Cars do not stay in one place, especially in the case of suburbanization.

Also, I'm not sure why/how the DC piece is intellectually honest. The Washington Metropolitan Statistical area has more than doubled in population since 1970[1]. Do you think all of the people who moved to PG County stay out of DC? That must be why the beltway is so easy to maneuver!

1: https://en.wikipedia.org/wiki/Washington_metropolitan_area

floren 3 days ago | parent [-]

> unless density has increased substantially, then on any given ride you're likely to encounter similar number of vehicles than before, not counting major / commute roads of course, but those aren't the ones kids are riding on

This was the original mention of density. Sure, cars don't stay in one place, but if we're talking about kids walking/biking around their suburban neighborhood, how big is the impact if there's a new 50k suburb on the other side of the urban core? Even commuters from the exurbs are taking the dastardly 45mph stroads, not the stopsign-laden 25mph streets through your neighborhood.

The common parlance around here is that "greater density" means smaller houses closer together or multi-unit structures. If you build a new subdivision outside town, nobody says "oh wow the town got so much denser", it just got broader. Waving at "57.5 average people/square mile in 1970, growing to 93.8 in 2020" says absolutely nothing about the experience of the average person on the average streets near their homes.

yesfitz 3 days ago | parent [-]

All right:

As an average person, I've observed that both my childhood and current neighborhoods (Mid-Atlantic and Midwest respectively) have increased in the number of cars present, and that's within and between neighborhoods. I have also observed more in-fill subdivisions between neighborhoods. Since the '90s, I've seen just the bike ride that I'd take multiple times a week in my Mid-Atlantic suburb yield one acre lots turned into 8 homes, a small office park being converted into multiple 5-over-1s, a country club being turned into 400 homes. In the past decade in the Midwest, I've seen 2 single family homes torn down to make 8 units with an 8 car garage and 8 more spaces out back, multiple small businesses torn down to make way for "luxury" student housing with a parking spot for every bed room, a shopping center and apartment complex torn down and turned into an even bigger apartment complex with parking for every bedroom. Many of these are on my block or on the bike path around town.

There are more cars. There is more density.

So there you go, I've provided census data, I've provided observations from my own life across multiple geographies that backs up the data.

If you're claiming that there aren't more cars in neighborhoods, please back up that claim.

n4r9 4 days ago | parent | prev [-]

It's not just how many cars there are, but how big they are, how aggressively they're driven, and how much infrastructure there is for bikes alongside.