Which using a core definition grounded in my research on present - day technological forms and functions , a railroad can be define as an overland right - of - way bearing self - guided vehicles .
Which obtain support and guidance from wheels on rails .
Using a core definition grounded in my research on present - day technological forms and functions , a railroad can be defined as an overland right - of - way bearing self - guided vehicles , which obtain support and guidance from wheels on rails .