If you look back to the 1990's, Anaheim had planned its roadways well, an overpass over Ball to get to Mickey and Friends, only using 1 block of city roadway from the I-5 South.
Pummba was designed the same with I-5 North and South placing cars onto Disney Way avoiding Harbor, and just crossing Katella.
The original DCA guest parking was the original Disneyland Parking Entrance, also using Disney Way, just crossing Harbor.
Unfortunately, due to the Disney Execs at the time, they decided to put Pumbaa on Hold, and leave it a flat lot than a Structure. Disney got hold of the Strawberry Field, something nobody expected in the late 1990's. While some at Disney were hoping for a new development (Hotels, Third Park, etc.), due to the underperforming DCA, that was not going to happen. So they decided to use it for Parking, as they wanted to build DCA 2.0 and close the remaining part of the original Disneyland Parking Lot, now placing vehicles onto Harbor.
At the same time, due to the creation of the Resort Area, the city started to expand its Convention Center, And of course, they built more parking, and more trucks needed to deliver facility items for booked shows. This brought more vehicles to the area. The main access is Harbor, Katella and West (which is the original name for Disneyland Dr, renamed in 2000 for the small segment).
Anaheim GardenWalk was designed with its main entrance on Disney Way, and Clementine was supposed to be a large bus depot area in the basement level of AGW.
The growth of both the DLR and the Convention Center brought more Hotels, which of course brought more vehicles.
And then we have the local residents, that population has grown due more housing being built.
The locals have voiced frustration with their commutes. As a West Anaheim leader, I hear it all the time, and Ball and Katella are our main routes. Harbor is in Central Anaheim, but many of us locals use it as one of only a few options that don't add miles to our commutes. And with the price of gas, well, adding miles for little to no time gain leaves us with Harbor for North/South travel.
If you look at the OCTA Routes, Harbor is a key route from Fullerton to Newport Beach, and has to go through the Resort Area. When roads are closed for Marathons, etc. The detours are miles away. It happened with the UNITE HERE protest earlier this year, and folks had to walk over a mile to catch a bus that wasn't running on Harbor or Katella. There are no secondary routes.
The Gene Autry extension is the only real option for shifting vehicles away, and getting them on/off the freeway and off the city streets.
The city doesn't want to increase speeds on the roadway, instead it wants more efficient flows, with less stopping and starting and get better traffic light syncing. They also want safer roads with less accidents. One of the goals with the Eastern Gateway was to move buses/shuttles off of Harbor using Manchester/Clementine, allowing the locals to flow more easily to get thru the Resort Area.
We see the 2028 Olympics coming, and want to be ready to help host them. By using Pedestrian Bridges, we can improve traffic flow for both Pedestrians and vehicles.
But the City of Anaheim has built a dense, large block of the Platinum Triangle (Honda Center/ARTIC/Angel Stadium and surrounding businesses and housing), and the Resort Area next to each other, with the I-5 splitting it in 2. These are the Main Roadways with basically no other viable options, and using Waze/Google Maps, etc. will prove that.
So splitting traffic onto different vertical options is what we have left. Undergrounding is not an option due to all the current water/sewer/power/etc. currently there. So bridges are the option we have.
I would love to see more of the extra wide, say a city block long, bridge like the one proposed over Katella at the Honda Center. But that is 100% privately funded. The Magic Way bridge is Disney Funded, as was the Disneyland Drive DtD bridge was. (The city did help out with the street being lowered). The Eastern Gateway Bridge will be Disney Funded. The ARTIC Bridge was funded by OCTA originally, but then the city bought the entire thing.
The City was hoping for help in the Disney Way bridge from the 4 Diamond that was going to replace the Anaheim Hotel and from the AGW. That opportunity will not happen now.
The SB1 Funds are a great chance to get at least some of these bridges built. Are they the perfect solution. No, but having something basic that can save lives and prevent injuries is a good thing. And Las Vegas has proven that.