Jake, you're right on the lefty, I missed the color diff. However, the Bridge will HAVE to be moved/replaced; the new "pit-in" makes the track significantly wider. Though, based on its relationship to the "Existing Bituminous Drive" it looks to not be moved, just replaced with something wider...what I DON'T see here is how the trafic will be re-routed to the Bridge. The entire area between the registration shack and the bridge is replaced with runoff and a spectator mound. The tree line on the left (as you're driving in) is still there, with no notation on how to get from the reg shack area to the bridge. The transporter access road is still there, and improved, but we can't use that for regular infield access (I remember when we race(d) Nelson and Hallet, how we had to plan our lunch/parts runs carefully, lest we get stuck outside the track watching our race group running...)
For us, the track will be faster. Not only because of the pavement change, but also because of the improvements in runoff safety. If you were to make these proposed changes - but not repave - I'd suggest just the knowledge that mistakes won't be so painful would improve lap times. Based on my data aq, I know that if I weren't paying the tab for the accidents I could pick up another 1/2 to 3/4 second on average... - GA