Not every Green New Deal created equal, a bad choice got subway flood
How about this green new deal: for public transportation by convex shape of the road elevation profile.
Merits of convex track/road curve:
1. Maximize fuel economy overall!
2. Minimize start-to-speeding energy by using some gravity traction during departure;
3. Get rid of expensive & complex yet immature Regenerative Braking System(RBS) to enable quick brake with gravity assistance by inertia ramp-up during arrival;
4. Track shape similar to the velocity curve.
For frequent start-stop public transportation, no matter what terrain shape, the velocity curve is always concave-like with the max speed in midway.
The process from standstill to full speed costs the biggest power; luckily the ramp-down portion of a convex-shaped road may self-start by simply releasing brake if the slope enough, so that significant fuel can be saved.
Although so many merits, however, the paving project may be cost big, and the midway lowest portion will be vulnerable to flood, even cause disaster.
July 20 is a tragic day for citizens of Zhengzhou city of China, where track curve natural cleantech is applied in the subway, sadly many lives have lost, as seen in the picture.
Not every #GreenNewDeal created equal; a bad choice from a pool of green new deals may kill us, or no beef to eat if choose AOC’s version :(
My sincere recommendation: other than by road convex curve, it’s better to use my great invention of Wei-Trump powertrain with innate RBS, good for any terrain, any vehicle!
Check other articles in my LinkedIn to get download links of my pending patent specifications.