I'm in the process or renovating my layout and last night while shopping at Aldi grocery store I stumbled upon this 30"X48" Grill Mat. It looks like it will be perfect to cut for making new roads and is about the right height for the Bachmann EZ Streets. It was only $9.99 a roll and maybe it's cheaper at Wal Mart but it was one of there red tags items so its only a limited item. If your can use it check at your local Aldi.
Have Fun!!!