[PDF][PDF] Project 21: A Practical New Intermediate-Capacity Rapid Transit System
LΚ Edwards - Transportation Research Record, 1981 - onlinepubs.trb.org
LΚ Edwards
Transportation Research Record, 1981•onlinepubs.trb.orgBACKGROUND Project 21 arose out of my search for a practical, intermediate-capacity
transit system, beginning in the mid-1960s. Active work on this system began in 1971 with
the discovery of a practical means for branching of elevated two-way traffic. Early refinement
of the concept was done by a team at Lockheed. The guideway design was further refined in
collaboration with Lloyd H. Donnell, the American Bridge Division of US Steel, and a major
supplier of electrical distribution hardware. Specific applications were worked out for a …
transit system, beginning in the mid-1960s. Active work on this system began in 1971 with
the discovery of a practical means for branching of elevated two-way traffic. Early refinement
of the concept was done by a team at Lockheed. The guideway design was further refined in
collaboration with Lloyd H. Donnell, the American Bridge Division of US Steel, and a major
supplier of electrical distribution hardware. Specific applications were worked out for a …
BACKGROUND
Project 21 arose out of my search for a practical, intermediate-capacity transit system, beginning in the mid-1960s. Active work on this system began in 1971 with the discovery of a practical means for branching of elevated two-way traffic. Early refinement of the concept was done by a team at Lockheed. The guideway design was further refined in collaboration with Lloyd H. Donnell, the American Bridge Division of US Steel, and a major supplier of electrical distribution hardware. Specific applications were worked out for a network in Los
onlinepubs.trb.org