My opinion:
The Vehicle's track which care about environment must not 
divide the land to be snipping and keep the continuous land
for plants and animals and human being themselves.
Highway or expressway are the opposite to living things.

A perfect elevated rail branch must allow the auto-car to 
pass branches continuously at high speed in each direction.
less maintenance than normal switch and being indeed less or
no maintenance than the normal rail portion.

It is worth to use normal rail form and non-switch invention to
build elevated rail by using steel wheel and steel rail to save
energy and to extend wheel life and reduce maintenance,also to 
perform as the speed of a normal train. 

The railbed should not be much complex than normal rail bridge
in prefabricating and constructing,with low cost as the ratio
of narrow gauge to normal gauge(engineering ratio).
++++++++++++++++
Description in utilizing
A network of Auto-Rail-Car with Non-Switch-Railnet can achieve 
those: 
I am a passenger but I do not want to drive.I can not drive.
I like to go somewhere alone.
I do not like change.
I always missing schedule due to my condition when I want to
go somewhere, I'd like to go destination whenever I want.
I am a child or I am a very old person, I can dial number or
use my dailed card for traffic , I can reach destination.
We are manufacturer or farmer and we needs to send goods to
user directly.
Animals in rural area can go their place, whether they are 
wolfs or rabbits and they will not venturing victim when 
crossing a traffic track .
I want to invest a project to perform, I need a new way to 
enlarge my capital to earn more money.
My country achieved message net, we need also to achieve
auto transport net that bring less pollution,saving energy,
higher efficiency ,environment care, ease to construct,
low cost and safety.

   Non-Switch Rapid Transit Rail Network System can finish all
of those.