Short answer no.
It is built into trainz itself.
Kenny
Ps try searching the forum, There is a thread about crossings but I am not sure where or how old.
The new style crossing separates are by Adrian19 and uses the ATLS system to control them. Do search for ATLS, tick all boxes and all the new assets will appear. see http://forums.auran.com/trainz/showthread.php?t=38978 for more info.
Frankly I am some what offended by your reply. It was a simple question which did not need a rude comment which did not answer the question.
Is it any wonder new people such as myself have no desire to attempt to create any thing for this game? We come to the forums to ask questions and are treated like idiots. Thanks a lot.