Hi Brian, Having seen your question might I suggest that either you might like to join the vi-uk-transport hosted on freelists, or as I'm already subscribed to that list, would you like me to forward your question to that list? I suggest this, as I know there are members of that list who could either answer your question, or point you towards people at TFL who would know the answer for certain. I hope this helps. Alexander Shannon ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq