We can’t see the specific area in question, but I assume drivers cut the corner (on both sides) near the mailbox. Of course they do. My hubby does it. Grrrr!

I think a wider concrete flare is the answer. Yes, it’s pricey. And yes, gravel will spread and sink and look unattractive. You could have big boulders set as borders, but careless drivers would hit them.

How about a flagstone look? But you’d have to get VERY large and heavy pieces of broken concrete sunk into place so it wouldn’t spread and sink like gravel. Big enough pieces that would have to be moved into place with a bobcat. Not an ideal solution either.

Don't know what your design and bidding process was, but you could try improving your design and getting another bid. The design should be on paper so bidders know what they are bidding on. If they think there are unknown issues, they may bed higher to cover the possibility.

Nails. That will teach them a lesson.

I don't think it all needs to be widened, given what little we can see in that photo--just the entrance flares and the inside of the curve.

IMO the area most likely to have the problem is the curved part at the end so just widen that area . Also it is always good to post pics of a whole area .

A couple signs: "Visitors Park On Street" and "Delivery Trucks Park On Street" might work. Add a half dozen reflectors on yard-high sticks if you think they'd mark a navigable way in.

Eventually, straightening and widening the driveway is the thing to do.

I have a similar issue. The 2 inner points of the curve were constantly getting driven over. Especially if one was in a full sized SUV or pickup truck. (This IS Georgia so that’s a majority of the vehicles around here) I couldn’t really afford to redo the driveway plus no asphalt place would even bother with quoting such a small job. We ended up digging out a bunch of rock from the property and setting them flush. About a tire width wide. It’s done the job quite well for 2 years so far.

I would do something similar to Holdbrook. I'd dig out the grass 3-4 feet on the inside curve side, following the entire driveway. Put a layer of heavy duty landscape fabric down and then get some gravel. By following the entire driveway it will look like a part of your landscaping and generally a load of gravel is not expensive. It comes in various sizes. A bit of a project but shouldn't cost much.

Consider doing what Annette Holbrook suggested but tighter river rock and a border paver piece or preserved wood. I had to do that and it worked very well. In fact I used gravel but very large gravel. First dig down six or so inches and put in your barire, wood or brick paver etc. and then add couple inches of road crush, wet and tamp to harden. Then top with heavy medium large river rock. If the rock is large it won’t move onto the grass and your barrier will stop the grass from growing over it and the rock becoming messy. This is about a 500.00 fix at the most!

Do some kind of metal edging that will keep the rocks in place. I would go with rocks.

Do as Annette Holbrook, but I would use driveway pavers, either solid, or there are some that are meant to allow grass or low growing ground cover to be planted within or in between the pavers.

+1 on Annette Holbrook's idea. It can look quite good if done right. Definitely wouldn't do metal edging though, that's a great way to pop a tire.

Would suggest you install edging of a type that wouldn't allow people to drive on the grass - something that would act as a real barrier.

:-) "...A cruise ship in pudding."!!! Oh yes, got that picture!