Surrogate Safety Measure

Before Motorcycle Lane

After Motorcycle Lane

Change (%)

Average Time to Collision (TTC)

2.5 seconds

2.8 seconds

12%

Average Post Encroachment Time (PET)

1.1 seconds

1.2 seconds

9.00%

Average Lane Change Frequency

0.9 changes/500m

0.7 changes/500m

−22.20%