Probably cause modern logistics, especially last mile logistics, is dependent on trucks/delivery vans/etc. So even though folks in a local area might like to walk around, their groceries won’t make it to the stores and packages won’t get to their homes without a robust road network.
I think Bacerlona hits a good compromise. The city has the concept of a superblock, which is a few city blocks grouped into one calm zone. Most car traffic stays on the streets around the outside, the perimeter of the superblock. Inside, driving is restricted and only at low speeds where allowed, so people and bikes get the space. So deliveries and residents can still but only slowly.
That’s far from the only example - many cities in Asia follow a similar model.
Smaller trucks. Japan makes due with one-lane alleys. (Not one in each direction. One. Deliveries and vehicular traffic are so uncommon, and the tightness of the space so inconducive to speeding, that it's safe for trucks and cars to go down them in whichever direction they need to.)
London is edging in that direction with the introduction of "low traffic neighbourhoods". Basically this involves preventing vehicles using them as a through route, by limiting some connections to only emergency vehicles. The problem is that it's also annoying for residents as it means the allowed entry/exit routes aren't necessarily in the direction you need to go. Does Barcelona have a smarter method?
I live in Vancouver, and we have plenty of both roads and bike lanes. Its not hard to fit a bike lane that's usually 1/4th the width of a lane onto a road or allow bikes to share with cars on smaller roads. We have trucks and vans and lots of deliveries too. The reason most cities are oriented around cars is because we designed them that way and it's difficult to change - there's no logistical constraint, its just politics and cost.
Last mile delivery can be done with large cargo ebikes capable of carrying up to 250-500kg.
Trucks or delivery vans should only be allowed on roads farther apart than 1-2km, with some exceptions (supermarkets, regular markets, etc).
We have all the technical tools needed, this is about political will.
> Probably cause modern logistics, especially last mile logistics, is dependent on trucks/delivery vans/etc. So even though folks in a local area might like to walk around, their groceries won’t make it to the stores and packages won’t get to their homes without a robust road network.
Totally. Banning automobiles is usually a bad idea, especially for residential zones. Years ago, I remember seeing a presentation about redeveloping a bad public housing block that was built in the 1960s with no auto-access (the assumption being poor people don't have cars), but it turns out that it meant they couldn't even get pizza.
it takes surprisingly few trucks to keep stores stocked. most of the trucks you see driving around are either delivering packages or hauling bulk cargo that used to go by rail
> their groceries won’t make it to the stores and packages won’t get to their homes without a robust road network.
A road network isn't the only solution. In the early 20th century, for example, there was a separate narrow-gauge tunnel network beneath Chicago dedicated to freight. Deliveries were made directly to businesses via subbasements or elevator shafts. The network had stations at rail and ship terminals for accepting freight arriving from outside the city. At its height in 1929, the network had 150 locomotives pulling 10 to 15 cars per train.
1. https://en.wikipedia.org/wiki/Chicago_Tunnel_Company