Sewer Roaming, Fiber laying Robot?
CityNet Telecommunications Inc., a new company in Silver Spring, Md. has found a better way to lay fiber in the sometimes nasty underworld of American cities. The Sewer Access Module, or SAM. [Although Hamburg Germany has been doing it this way since sometime last year] Story Here
Los Angeles, CA
There is nothing new here. The underlying premise is reliance upon existing ROWs. Whether its electric, telephone, gas, water or sewer, such ROWs provide access into the home, and therefore will attract any entrepreneur who might have an idea of how to "network" the populace along the last mile.
To add further comment, I would suspect sewer ROWs to be the least practical. Sewers are open systems, meaning their not pressurized like water supply or gas, or contained within secure cabling like electric or telephone, but open to liquid and solid waste in open channel flow subject to periods on infiltration of storm runnoff. Despite the possibility of installing a secure communications conduit within sewer ROW above the flow, it appears to be the least desirable not entirely removed from risk due to changes in flow over the course of a year.
Sewers are also gravity systems. You know the old saying, "shit flows down hill." So some of these ROWs are as much as 50-60 feet below grade. Sure, that'll be no problem. What happens when the "network" runs into a pressurized line, where the kaka has to be pumped. The list goes on.
There are too many alternate existing ROWs in the streets leading to the home. How many do we need? If sewer were the ONLY alternate to telephone and cable, maybe I could see the possibilities. But we also have gas and electric. This idea belongs where it started . . . in the toilet.