Conclusions:

A RUF traffic system in L.A. can be a lucrative business.

The users will get a system with highly attractive qualities such as:

* No congestion

* Contribution to an improvement of the air quality

* Relaxed rail travel

* Door-to-door transportation

* A public transport system with 3 seconds between arrivals of MAXI-RUFs

* Non-stop between major stations during rush hour

* Possibility of own seating arrangement

* Easy ascending/descending

* "Dial-a-RUF" facility

* Waiting time at street level approx. 1 minute

* 24-hour service on the rail system

Construction of a RUF-system will cost approx. $9.55 billion.

Maintenance of rail network and stations = $0.5 billion/year

Renewal of rail network and stations = $0.5 billion/year

Operating profit will be 2.86 - 1.21 + 0.12 + 1.16 + 0.2 + 0.1 - 0.5 - 0.5 = $2.23 billion/year.

To this should be added savings for L.A. in the magnitude of $2.9 billion/year.

Other advantages which are hard to quantify include:

* Less noise

* Rise of attraction value

* Reduction of stress

* Fewer cars in the streets

* Less CO 2 emission

* More tourists

* Rise of economic efficiency

On the negative side may count:

* The aesthetic effect of the rail system. It may, however, also be regarded as a positive feature, since a number of other installations can be removed from the street. It is only every 30th street which has a rail in the middle, and they are all wide streets.

Consequently there is room for major development costs.