# Make 3 major highways all red
187 00:00:00  5 N 33.0 44.0 R
183 00:00:01  405 S 0.6 44.0 R
181 00:00:02  5 S 16.3 18.0 R
# Have 55 alternate green/red every 30 sec 
190 00:00:30  55 S 3.11 50.0 R
190 00:01:00  55 S 3.11 50.0 G
190 00:01:30  55 S 3.11 50.0 R
190 00:02:00  55 S 3.11 50.0 G
190 00:02:30  55 S 3.11 50.0 R
190 00:03:00  55 S 3.11 50.0 G
190 00:03:30  55 S 3.11 50.0 R
190 00:04:00  55 S 3.11 50.0 G