Are there liability issues related to this program?
The requirements for the Reverse Signal Operations is based on existing OSHA requirements, such as the Logging Standard, 1910.266. VOSH/OSHA is not aware of any liability issues that did not already exist in statutory or common law.
If an accident occurs "off road", the VOSH regulations will apply, as will existing Worker's Compensation laws and regulations.
If an accident occurs on teh highway or a street, the same laws will apply, along with existing traffic regulations that are enforced by the police and sheriff's office.