lightblueline

The line segments are 6 inches wide and 34.5 inches long.

A 5-segment line would be 14' 4.5" long (2 lane street)

A 10-segment line would be 28' 9" long (4 lane street)

A quick survey of Santa Barbara streets shows these have varying widths:

Milpas St. is about 69 feet wide at de la Guerra...

Ortega is about 39 feet wide near Milpas...

de la Guerra is about 35 feet wide near Milpas...

Spring Street is about 29 feet wide near de la Guerra...

SO... centering the lines in the middle of the street allows us to standardize their look.