Hello guys

Down At my Model Railroad Club we recently started the task of Isolating all the sidings and mainlines. We are using DCC specialties PSX Circuit Breakers. One issue I noticed tonight after the install is that if 2 trains are aproaching each other, One can still short out other(if it derails on the siding switch) when one train is trying to enter a siding. Basicly I would like to know if there is a better way to protect each end of the siding/mainlines. I have attached a simple track plan. and a plan of where we installed the gaps for. Right now the sidings are completly isolated from the mainline but Im thinking we need to re think these gap locations of the mainline

Disregard the Wye and reverse loops as they have Auto reverse units installed and gaps cut for them.

Please see the attached Pics of our track plan and comment

Thank you for looking.

Trent