Call this a tale of two transit systems.

There is Elon Musk’s electric-powered platforms or skates called the Loop designed to shoot cars or mass transit vehicles holding up to 16 people through tunnels at 150 miles per hour throughout Los Angeles. Yet, a crucial piece of the network through the agonizingly crowded 405 Freeway in the Sepulveda Pass was scuttled because of a lawsuit dealing with state environmental laws. Then there is the state’s high-speed rail project that marches forward despite numerous environmental lawsuits and funding issues.

Whether Musk’s transit system would work as described is not proven. Maybe it will run into some of the same hurdles as the high-speed rail—cost overruns, skepticism that the train can reach both its passenger goals and promised speeds.

Yet, environmental laws disrupted the Musk project but have not knocked out the bullet train.

Make no mistake, we are told both projects are designed to help the environment. The bullet train will take travelers out of their automobiles while the Musk transit system is moving vehicles around faster so they are not idling, spewing pollutants.

The Loop fell victim to a state environmental law that says infrastructure projects cannot be approved in a piecemeal fashion. Musk had sought avoidance of environmental review on what he called a stand-alone project but a couple of neighborhood associations representing areas near Sepulveda Boulevard on the west side of Los Angeles sued. Musk settled the lawsuit and put aside the tunneling project. His Boring Company has other tunneling projects in the LA area in the works, including one to run from Union Station to Dodger Stadium.

In the meantime, the high-speed rail is facing up to seven lawsuits but has not yet been “de-railed” by any of them.

The train authority also must deal with a recent audit of the project by the state auditor critical of cost overruns and building delays.

Today in Sacramento, California High Speed Rail Authority leaders will respond to the audit before a hearing of the Assembly Transportation and Joint Legislative Audit Committees.

Assemblyman Jim Patterson of Fresno who called for the audit plans to examine the authority on a number of issues raised in the audit including whether contracts worth hundreds of millions of dollars were properly fulfilled; and whether the authority will complete it initial 119-mile segment of the track by December 2020 so as to avoid the loss of $3.5 billion in federal funds.

Despite the audit and the lawsuits based on environmental concerns, the high-speed rail moves on. However, an environmental laws disrupt the potentially more effective Loop plan dealing with the environment.

It helps to have a powerful advocate on the side of the bullet train. How the bullet train fares with Governor Jerry Brown letting go the reins of power is interesting to contemplate.