The Milton Proby Parkway mainline will open to traffic 5:30 a.m. Friday.

Here's a look at some of the improvements:

• a new ramp for westbound Proby Parkway traffic to southbound Academy Boulevard.

• a new ramp for southbound Academy traffic to eastbound Proby Parkway.

• a new ramp for northbound Academy traffic to eastbound Proby Parkway.

Also this week, more work begins on nearby Drennan Road. The work requires the closure of Drennan access east from the Academy intersection. This area is the future location of the final two ramps of the Proby project.