To state the obvious, the best way for pedestrians not to get injured on the roads is to stay out of harm's way.
For all the criticisms that might be levelled at motorists, they are generally good at waiting for pedestrians on properly marked crossings and at traffic signals - as long as they can see you and have enough time to stop.
Pedestrian crossings cost councils a lot of money and they are great at keeping you safe. Get your money's worth out of your tax contribution: use pedestrian crossings properly.
Make a point of looking and consciously thinking about how soon an approaching car might get to where you are going to cross. Do you remember the Green Cross Code? If you're a parent, you'd certainly like to think your child does.
Schools and local authorities play their part in educating our children about road safety, but responsibility has got to rest primarily with parents. Children are easily distracted and lack the awareness of danger that adults possess. Crossing the road safely is an idea that has to be reinforced with them.
Inevitably, there are places where you just can't help but walk in the road to get to where you need to be. When it's dark, motorists won't see you. You should take responsibility for your own safety by facing oncoming traffic and being ready to put yourself in a position of safety when vehicles pass. Carry a torch in your vehicle, in case you break down. You may also wish to have in a high visibility coat or vest.