RoRoRail simplifies Rail-Road container transfer by replacing lifting systems with one that rolls intermodal containers between modes.


 problems to be solved:

solution

*Image on researchgate.net by Felix Brandt.

*Image of New York Central Rail Flexivan Trailer by Andy Madden.

*All images used for information purposes only. 

*Image courtesy of Air Transport Services Group (ATSG) Inc.

Plan A:
a new system
for new rail markets

Plan A, 2.0: 

Caster Wheels have a large diameter to get over floor irregularities. They rotate 360 degrees horizontally, and they spread across the bottom of the container on 18 inch centers. 

Image (L): 5 inch thermoplastic rubber tread caster wheels - 350 lbs. capacity.
*Image courtesy of Service Caster. All images for informational purposes only. 

Containers are made of aluminum (or fiberglass) sheeting with aluminum reinforcing frame.

Plan B:
a simplified system
for hauling
or transferring
standard containers

Plan B is for markets that use or require use of standard 53-foot containers, TEUs (20’ equivalents) and FEUs (40’), on RoRoRail cars used for moving LDs and can also accommodate the larger and heavier containers. Such markets can include:

Rail cars would need to be equipped with auxiliary power, such as solar-battery or hydrogen, to assist in moving heavier loads between modes. Auxiliary power could be similar to those used on Difco ballast cars currently in use. 

rationale

conclusion 

Rail carriage is a natural way to move freight in an efficient and effective manner that reduces pollution and congestion…over long distances. The main challenge is how to apply the advantages rail transport to carrying containerized freight over relatively short distances. The short haul movement of containers by rail is challenged by the large costs for infrastructure and manpower needed under current tranfer methods. While those methods work for running double stack container trains long distances, they deter the short hauls. RoRoRail applies a simple roll-on roll-off system that eliminates or reduces both time and infrastructure expenses, allowing for rail to compete in markets of 500 or fewer miles. Developing an actual design is the next step toward marketing and encouraging investment in such a system. 

opportunities

other questions?

acknowledgements 

Initial system design: Spring quarter 2020 by Segal Design Center at Northwestern University McCormick School of Engineering. We extend sincere thanks to Dr. Stephen Carr and Peter Tuchler, David Meza, Joseph Nikac and Dash Slamovitz for their research and design recommendations accomplished during a challenging time of having to do all work virtually from remote locations. Also, credit is due to Diona Geci for the logo design and art direction. All these people are a credit to the caliber of faculty and students at Northwestern.

Payson Wild
President
North Shoreline Inc.
Evanston, IL 60201
payson@rororail.net

Joseph Schofer, PhD
Emeritus Professor of Civil and Environmental Engineering 
Northwestern University