*
* File format:
*
+ * max-trains num
* train <trainpn> at [-]<foredetectpn>:<maxinto>+-<uncertainty>
- * seg <segpn> has [-]<ownerpn>|$ <movposcomb>
- * train <trainpn> is #<addr> <head>+<detectable>+<tail>
+ * train <trainpn> is <addr> <head>+<detectable>+<tail>
* train <trainpn> step <step>=<speed> <upwait>/<downwait>
+ * seg <segpn> has [-]<ownerpn>|$
+ * seg <segpn> at <movposcomb>
*/