**reposted from skyscrapercity**
I missed this back in May, but when it was announced that the study to determine what to do with I-375 started back up, they also put out a few new schematics. These are oriented with the top of the image facing east.
#1: This is the as-is option with few improvements. The most notable is a widened off-ramps.
#2: Same as #1, but this actually extends the freeway beyond Jefferson with a connector. This one also adds bikelanes to the service drives.
#3: This one totally reconstructs the freeway shifting it west south of Lafayette also bringing it at-grade south of Lafayette. It also keeps the riverfront connector in #2 and shifts Jefferson northward opening up new land for development between the avenue and Woodbridge.
#4: This option gets to the most radical point of elevating the entire street to a surface street south of Gratiot, shifting the now-street a full block to the east opening up lots of land for redevelopment. This also keeps shifting Jefferson north opening up land to the south. This option would also include a significant non-motorized path running adjacent and east to the new boulevard.
#5: This option is the similar to #4, but shifts the new boulevard to the west opening up land to the east.
#6: The final option keeps the freeway footprint, but turns it into non-motorized path similiar in function to the Dequindre Cut. The former freeway is instead rerouted onto the service drives.
I should mention all options except one include the riverfront connector. Also, there are two options for the reconfiguration of the I-75/I-375 interchange north of Gratiot. Option #1 would remove the left-hand ramps onto Madison and instead add a more traditional interchange with Gratiot. The I-75 Gratiot connector at the south of Eastern Market would be raised to become a surface street and shifted significantly south creating new land to develop on the south side of the market. Option #2 is more radical, completely reconfiguring the I-75/I-375 interchange by removing the Gratiot connector entirely. This is accomplished by bringing I-375 up to the surface AT Graitot removing the need for the Gratiot Connector south of Eastern Market. This option opens up tons of land; apart from the Gratiot connector eliminator, this would also mean significant new land in the southwest quadrant of the freeway interchange. This option is only possible with alternatives #4, #5, and #6.
I think my prefered option would be #4. While seemingly little different than five, I think if you're going to create any significant land to be developed, you do it inside instead of outside downtown.