Primary Local Driving Topic: I-35 Frontage Roads and Major Intersections
For San Marcos students, one of the most important skills is learning how frontage roads work.
A driver may leave a local street, enter a frontage road, cross another major intersection, and then encounter an interstate entrance ramp within a short distance. The student needs to understand lane arrows, exit signs, ramp placement, turning movements, and traffic merging from multiple directions.
The San Marcos Transportation Corridors Study identified operational challenges at the SH 123/I-35 frontage-road intersections, including significant peak-period delays in its analysis. This is a useful reason to practice the area carefully rather than assuming a frontage road is simply another city street. (CAMPO)

