In the urban network concept presented, the system is based on a grid of counter clock-wise loops encircling a 4 X 4 city block area and interconnected by a pair of connectors on all four sides of the loop (see sketch). An 8 X 6 block area centered around the loop can be considered the “Grid Template” of the network, as this template can be placed like tiles to generate a full network. Depending on the dimensions of the blocks, the template would contain about 1-3/4 miles of main tube, one station, six fans, and one each entry and exit ramp. Reference: Urban Loop Network.

 

In urban or suburban areas where streets are more random, the same concept is used but may look a lot different to fit the actual street layout. Reference: Random Loop Network

 

The main features of this network design are the single elevation layout without and need to cross over another tube, the ability to install a station at any location on the network, and the installation of only one tube on any street. Reference: Network Cross Intersection.

 

The capacity of each tube would be limited to 40 ft spacing (2807 pods per hour) as the curved portions of the loop tube, where two tube intersect, would need to carry up to two times this rate, or 20 ft spacing.

 

The design speed of 35 MPH, needs minimum radius curves of 150 ft, which is achievable in most 4-lane urban intersections. The tube is intended to be pedestal mounted 18 feet over a street or other right-of-way with minimal impact on the streets and parking below.

 

There are probably many more possible network concepts that could also meet the network performance and simplicity needs.