trackways

Make it fully automated, self driving, on controlled trackways with entry and exit on the opposite sides of cars.

These ancient trackways generally ran along the hilltops, only descending when necessary to cross valleys.

Neolithic wattle trackways in the Somerset Levels are evidence of sophisticated coppicing systems which produced rods of exactly the same size.

This is one reason why polynomial spirals (Spiro curves) can be great tools for representing trackways or road centerlines; with G4 continuity, snap is continuous which means crackle is finite.

They pulled their boats over land, but I have never heard about them building any paved trackways.

The paper Early adaptation to eolian sand dunes by basal amniotes is documented in two Pennsylvanian Grand Canyon trackways [1]: > The narrow width of both trackways indicates that both trackmakers had relatively small femoral abduction angles and correspondingly relatively erect postures.

From the paper Walking in mud: Remarkable Pleistocene human trackways from White Sands National Park (New Mexico) [1]: > We describe a long prehistoric human trackway (1.5 km) of Late Pleistocene age at White Sands National Park (New Mexico, USA).

> According to Matthew Bennett, a geologist at Bournemouth University who specializes in ancient footprints and trackways, it’s likely that these ancient imprints were intentional.

If a city were planned like a building, and horizontal movement given over to externally-powered single-car on-demand vehicles that move exclusively on dedicated trackways, there wouldn't be so much space and energy wasted on cars.

> Maybe in parallel you could also: improve the trackways between San Francisco and San Jose They did, sort of, but not to HSR, just by electrification.

It seems to be caused by the trackways: the tires are constantly rubbing on the sides of the track, so the cars are very noisy any time they're in motion, and it's really miserable just standing on the platform.

Maybe in parallel you could also: improve the trackways between San Francisco and San Jose, maybe build Sacramento to San Francisco, Sacramento to Stockton (and maybe extend that to San Jose and Fresno, with a San Jose to Santa Cruz stretch goal).

From TFA: "We ruled out swimming because the trackways are so regular," said Martin Lockley, a paleontologist and professor at the University of Colorado and an author of the study.

I seem to remember that the Norse also had a few of those over land trackways on their "Traderoute from the Varangians to the Greeks" across the Russian river network to get from the Baltic Sea to the Black Sea.