Great question—and yes, you can find urban benches designed with wheelchair users in mind, but not every standard city bench will have the extended armrest you are looking for. The feature that makes transfers easier is usually called an extended armrest or transfer armrest. It is an end armrest that extends beyond the seat edge or angles outward so a person seated in a wheelchair can grip it, brace, and slide across more safely.
When you are comparing benches, check a few key specs. First, look at the seat height. ADA-compliant benches typically sit around 17 to 19 inches high, which is close to standard wheelchair seat height and makes lateral transfer much easier. Second, make sure there is a clear side approach. That means open space next to the bench, with no leg panel or armrest blocking wheelchair access. Third, see if the armrest is placed at the open end and extends beyond the seat or wraps around the corner. That extended armrest gives you a stable handhold during the transfer and something to push off when returning to your chair.
Some accessible urban bench models are sold as wheelchair-accessible benches, transfer benches, or ADA park benches. These are the models most likely to include the extended armrest you are asking about. Standard decorative street benches often have armrests only in the middle or none at all, so they are not ideal for transferring.
If you are looking at a specific set of urban benches, check the product photos and dimensions. Look for an armrest that extends past the seat deck at the open end. If one of your options has that, it is likely a solid choice. If not, you can still improve access by adding a freestanding grab bar or a bolt-on transfer arm if the bench frame allows it. But the cleanest solution is choosing a bench that already has the extended armrest built in.