Going back to Mervyn's original request for wacky ideas, what about the investigation of intergreen values and possible reduction or being more responsive to traffic all to improve capacity. Are the calculations still valid in this day and age? Are they similar to those on the continent? Does removing the starting amber improve capacity? Can we use variable intergreens like on puffins i.e. reduce intergreen on gap out? Can we incorporate additional "tram style" detection i.e. detection on leaving side of junction or stop line? Can we alter intergreens in relation to approach speeds - down as well as up? Peter Heath Senior Assistant Engineer Greater Manchester Urban Traffic Control Tel: 0161 247 3162 Mobile: 07876 218272 ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Please contact internet.administrators@xxxxxxxxxxxxxxxxxxxxxxx with any queries. ----------------------------------------------------------- A message from the TCUG mailing list. For information about the list visit //www.freelists.org/webpage/tcug