Home Page Forums Prototype and Historical MP/T&P Documents ZTS, CLIC, SPINS… what system did MP use? Reply To: ZTS, CLIC, SPINS… what system did MP use?

#8157
Dennis Faircloth
Participant

Hi Ryan,

MP used ZTS (Zone-Track-Spot) system and published books for each territory covered by a particular customer service center. They were all in 4.25″ x 11″ format with orange covers. After the UP merger, the books continued to be published, with a UP herald replacing the MP herald on the covers.

The MPHS digital archives group is working toward offering a set of ZTS diagrams, probably on CD, that covers the entire MP system. We are currently compiling what is in the collection, and what portions of the system we are missing.

Ted Ferkenhoff
Flagstaff, AZ