Positive train control (PTC) is a system of functional requirements for monitoring and controlling train movements to provide increased safety.
The American Railway Engineering and Maintenance-of-Way Association (AREMA) describes Positive Train Control as having these primary characteristics:
- Train separation or collision avoidance
- Line speed enforcement
- Temporary speed restrictions
- Rail worker wayside safety.
Read more about Positive Train Control: Overview, Basic Operation, Areas Where in Use, See Also
Famous quotes containing the words positive, train and/or control:
“Blessed be the inventor of photography! I set him above even the inventor of chloroform! It has given more positive pleasure to poor suffering humanity than anything else that has cast up in my time or is like tothis art by which even the poor can possess themselves of tolerable likenesses of their absent dear ones. And mustnt it be acting favourably on the morality of the country?”
—Jane Welsh Carlyle (18011866)
“The beginning of reform is not so much to equalize property as to train the noble sort of natures not to desire more, and to prevent the lower from getting more.”
—Aristotle (384322 B.C.)
“Knowledge in the form of an informational commodity indispensable to productive power is already, and will continue to be, a majorperhaps the majorstake in the worldwide competition for power. It is conceivable that the nation-states will one day fight for control of information, just as they battled in the past for control over territory, and afterwards for control over access to and exploitation of raw materials and cheap labor.”
—Jean François Lyotard (b. 1924)