Interstate 990 South reassurance shield. (Photo taken 8/23/16).

The speed limit on Interstate 990 South starts out at 65 mph. This is the standard speed limit on most rural Interstate highways in New York. (Photo taken 8/23/16).

Interstate 990 South at mile marker 5.2. (Photo taken 8/23/16).

Interstate 990 South at mile marker 4.8. (Photo taken 8/23/16).

Interstate 990 South at Exit 4: North French Rd (Photo taken 8/23/16).

Interstate 990 South at mile marker 4. (Photo taken 8/23/16).

Another Interstate 990 South reassurance shield. (Photo taken 8/23/16).

View on Interstate 990 South at mile marker 3.2. (Photo taken 8/23/16).

Interstate 990 South at Exit 3: Audubon Pkwy / University at Buffalo North Campus (Photo taken 8/23/16).

Interstate 990 South at Exit 2B: Sweet Home Rd North (Photo taken 8/23/16).

Interstate 990 South at Exit 2A: Sweet Home Rd South (Photo taken 8/23/16).

The junction of Interstate 290, which is the southern terminus of Interstate 990, lies 1 mile ahead. (Photo taken 8/23/16).

This electronic sign dynamically displays the estimated travel times to downtown Buffalo via Interstate 290 East and West. (Photo taken 8/23/16).

Approaching the junction of Interstate 290 and the southern terminus of Interstate 990, the speed limit decreases to 55 mph for all traffic. (Photo taken 8/23/16).

Stay in the two leftmost lanes to go onto Interstate 290 East. Be in the two right lanes for Interstate 290 West. (Photo taken 8/23/16).

Interstate 990 South at the junction of Interstate 290 in Amherst. (Photo taken 8/23/16).

On the ramp to Interstate 290 West, we see Interstate 990's official southern terminus, marked by mile marker 0.0. (Photo taken 8/23/16).

View on the ramp to Interstate 290 East. (Photo taken 8/23/16).

Interstate 990 South as its ramp to Interstate 290 East prepares to merge into I-290's eastbound lanes. (Photo taken 8/23/16).