Sometimes family support can make all the difference in the world. Studies show that a walking speed of 72 meters per minute is needed to cross the street safely at a traffic light. That's about 90 yards or the length of a football field.

It might be helpful to see how far he can walk and how long it takes him to go 90 yards. If he can walk that distance within 60 seconds he shouldn't have any trouble crossing an intersection.

You may want to take him on a trial run. Having someone to walk with who can help navigate the intersection can be very helpful. Some people carry a cane with them when walking alone. Even if they don't need it, oncoming traffic will slow down when they see a person using a cane.

Ask him about his daily exercise program. Is he still doing the exercises he was given during rehab? Research is showing patients with hip replacements do better if they continue their exercises up to two years after the surgery.