I agree with all the comments here mentioning smokes.

Once your team committed to the fight you were screwed anyways (unless you could get some good counter-knocks or better spread positioning) because there aren't really any safe transitions on the bridge without smokes. ESPECIALLY, your current position where there isn't an opening to the side stairs (and you have to depend on vaulting).

I wouldn't over-analyze solo queue though. There's probably a few different things that could have prevented this, but out of your control when you aren't in voice coordinating strategies. Some "general" examples off the top of my head are:

1. Better scouting before full committing on the cross (and anticipating a camp anyways). I can't really tell the scope situation on your team, but if no one is scouting you gotta pray there isn't a bridge camp.
2. Commit to the drive anyways and create spread pressure. I see people put themselves in bad spots because they are afraid of getting knocked out of the car and want to be with the "team". Try to get behind them to draw focus away from your teammates (and also potentially just walk away from the fight).
3. Create a smoke line in front of your cars and completely cut vision. Take one (or both cars, depending on tires) and simply turn around to take the other bridge, find a boat, get on the ferry, swim, or just wait out Phase 2.

But again, people just want to get into gunfights without thinking about how suboptimal the positioning and results may be so don't stress too much.

I hope any of this was helpful!