This is the same planet as shown in the link below 25 million years later;

http://www.furaffinity.net/view/23892246/

The description in the posting gives a description of the planet's history when and after life ended.

The image shows evidence of intelligent life back when there was life on the planet 25 million years ago.

Normal life on this planet, with it's cute and sweet moments, will be posted on InkBunny.

The planet's deterioration and transformation to a lifeless planet will be posted on SoFurry.

The interchange of the two bridges spreads across the water over a mile and a half...This is to maintain broad curves, avoiding small radius turns, so traffic speeds exceeding 160 kph (100 mph) can be maintained on the interchange, like it is on the bridges and highways...By each ramp being approximately 3/4 of a mile long, exiting the bridge tunnel onto the westbound bridge, and vice-versa, can be negotiated at speeds well over 100 mph without having to slow down.
Even the tunnels are designated to accommodate high speeds.
The highways and bridges, pretty much throughout the planet, are designed to accommodate high speed travel.