Question 1

When is traffic worst on SR-91 West in Inland Empire?

Accepted Answer

Traffic on SR-91 West is usually worst on Thursday around 5 pm (about 38 mph).

Question 2

What is the best time to drive SR-91 West in Inland Empire?

Accepted Answer

On weekdays, avoid around 8 am (55 mph on Tuesdays) and around 5 pm (38 mph on Thursdays). Midday (10 am to 2 pm) averages 59 mph, and early mornings and late evenings are fastest.

Question 3

Is SR-91 West busy right now?

Accepted Answer

As of 8:45 am PDT, SR-91 West in the Inland Empire is averaging 56 mph across 9 sensors, 6 mph slower than usual for this time. The slowest stretch is near Tenth St at 41 mph (usually 61 mph).

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	65	64	61	59	57	59	59	59	60	55	47	48	48	61	62	61	64
Tue	65	63	62	55	57	59	59	57	57	57	48	41	39	55	63	61	64
Wed	65	64	63	58	59	57	58	59	58	54	45	44	39	57	64	63	64
Thu	65	63	61	56	59	59	57	59	57	57	45	40	38	55	64	62	65
Fri	66	64	62	59	60	61	59	61	59	53	45	45	47	58	62	62	64
Sat	66	64	63	63	62	62	62	61	62	63	62	64	64	64	64	64	66
Sun	66	66	65	65	63	61	61	60	61	62	62	61	63	62	62	62	65

SR-91 West Traffic in Inland Empire

Best time to drive SR-91 West ("the 91")

Questions

When is traffic worst on SR-91 West in Inland Empire?

What is the best time to drive SR-91 West in Inland Empire?

Is SR-91 West busy right now?

Other freeways in Inland Empire

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	65	64	61	59	57	59	59	59	60	55	47	48	48	61	62	61	64
Tue	65	63	62	55	57	59	59	57	57	57	48	41	39	55	63	61	64
Wed	65	64	63	58	59	57	58	59	58	54	45	44	39	57	64	63	64
Thu	65	63	61	56	59	59	57	59	57	57	45	40	38	55	64	62	65
Fri	66	64	62	59	60	61	59	61	59	53	45	45	47	58	62	62	64
Sat	66	64	63	63	62	62	62	61	62	63	62	64	64	64	64	64	66
Sun	66	66	65	65	63	61	61	60	61	62	62	61	63	62	62	62	65

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	65	64	61	59	57	59	59	59	60	55	47	48	48	61	62	61	64
Tue	65	63	62	55	57	59	59	57	57	57	48	41	39	55	63	61	64
Wed	65	64	63	58	59	57	58	59	58	54	45	44	39	57	64	63	64
Thu	65	63	61	56	59	59	57	59	57	57	45	40	38	55	64	62	65
Fri	66	64	62	59	60	61	59	61	59	53	45	45	47	58	62	62	64
Sat	66	64	63	63	62	62	62	61	62	63	62	64	64	64	64	64	66
Sun	66	66	65	65	63	61	61	60	61	62	62	61	63	62	62	62	65

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	65	64	61	59	57	59	59	59	60	55	47	48	48	61	62	61	64
Tue	65	63	62	55	57	59	59	57	57	57	48	41	39	55	63	61	64
Wed	65	64	63	58	59	57	58	59	58	54	45	44	39	57	64	63	64
Thu	65	63	61	56	59	59	57	59	57	57	45	40	38	55	64	62	65
Fri	66	64	62	59	60	61	59	61	59	53	45	45	47	58	62	62	64
Sat	66	64	63	63	62	62	62	61	62	63	62	64	64	64	64	64	66
Sun	66	66	65	65	63	61	61	60	61	62	62	61	63	62	62	62	65