Looking on the internet deeply has found these results:

Restaurant is by the road is the most popular phrase on the web.

Restaurant is at the road 10 results on the web	Restaurant is by the road 19 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Try the restaurant up the road. Listen, I'll be across the road, in the restaurant. Apparently she intended to have you stop at some restaurant down the road and have you read it. Well, I was just having dinner down the road, and I remembered that you said you had a restaurant around here. So he just left the restaurant and started wheelin' down the road? In my mind, the restaurant's just down the road, but on the map apparently it's 20 miles away. There is a Greek restaurant on Stovington Road. He said he's across the road, at the restaurant.	There is a Greek restaurant on Stovington Road. So he just left the restaurant and started wheelin' down the road? Apparently she intended to have you stop at some restaurant down the road and have you read it. He said he's across the road, at the restaurant. Listen, I'll be across the road, in the restaurant. Try the restaurant up the road. Well, I was just having dinner down the road, and I remembered that you said you had a restaurant around here. In my mind, the restaurant's just down the road, but on the map apparently it's 20 miles away.

Restaurant is at the road

10 results on the web

Restaurant is by the road

19 results on the web

More popular!

Try the restaurant up the road.
Listen, I'll be across the road, in the restaurant.
Apparently she intended to have you stop at some restaurant down the road and have you read it.
Well, I was just having dinner down the road, and I remembered that you said you had a restaurant around here.
So he just left the restaurant and started wheelin' down the road?
In my mind, the restaurant's just down the road, but on the map apparently it's 20 miles away.
There is a Greek restaurant on Stovington Road.
He said he's across the road, at the restaurant.

There is a Greek restaurant on Stovington Road.
So he just left the restaurant and started wheelin' down the road?
Apparently she intended to have you stop at some restaurant down the road and have you read it.
He said he's across the road, at the restaurant.
Listen, I'll be across the road, in the restaurant.
Try the restaurant up the road.
Well, I was just having dinner down the road, and I remembered that you said you had a restaurant around here.
In my mind, the restaurant's just down the road, but on the map apparently it's 20 miles away.