The city of Laconia, has yet to go public with results from Alta's study, that they preformed over the winter. Much to my surprise however, I just came across this article that sheds light on a study that the railroad paid for. If the city ever decides to release the results of the study, one should be able to compare both.
"An analysis says the Hobo & Winnipesaukee Scenic Railroad in New Hampshire accounts for more than $17.4 million in total economic impact annually."
https://www.visitwhitemountains.com/...gional-economy