Keiji wrote:Disconnected road systems would be brilliant for separating pedestrian paths, cycle paths, roads (planar rail), true railways, canals, airport runways and even utilities like electricity, gas, telecoms etc. so that the roads do not have to be dug up every time they want to change something!!
Speaking of electricity, the biggest advantage of 4D is that your wires will never get tangled up! I mean, they will, but a gentle tug should disentangle them easily, unlike in 3D where they form knots that no amount of tugging will undo.
I also get the feeling that in 4D, things will tend to be mainly built on the ground, rather than stacked over each other like in 3D where you have roads and pedestrian walkways side-by-side, and bridges are necessary when a crossing is needed; and electric cables and telephone poles have to criss-cross each other and hang over roads, etc.. In 4D, since there is so much ground space, you could in theory lay all these things out on the ground without intersecting each other, that you hardly need to build very much above ground level. There will also be markedly less need for bridges and overpasses (if at all!), since there's space to just walk around the obstruction instead. And skyscrapers will probably be unnecessary (not to mention extremely expensive to build!) since each additional floor introduces so much more floor space that having many floors seems extravagant. Also, since the weight of the upper floors increase cubically, it may not be feasible to build very high without risking collapse.
anderscolingustafson wrote:Sometimes the place an emergency vehicle needs to get to might be in the main road system. For instance if there was a car accident then the emergency vehicles would still need to be able to get to it even if they had their own road system. Also if a criminal was trying to get away using the main road system the police would need to be able to get to him/her. So I think it would be a good idea to have the main road system connected to the road system for emergency vehicles so that police would be able to get to it if they need to.
Good point.