You must drive on the left side of the road in London. Remember that if you reach a stop light and want to turn left, you may not. As a tourist, you want to make sure you are in full compliance with all the traffic laws and regulations. There is a difference between the double dashed white lines and the double solid lines. Stop at the solid ones and yield at the dashed ones.
Avoid an area called the Strand. It is very, very congested almost everyday. What is the point of taking a vacation and then sitting in traffic? Pay for a tour guide, sit back and enjoy the ride. Another area to avoid is the Blackwall Tunnel. Sometimes traffic just stops on this road for no apparent reason. Visit www.vroomvroomvromm.com for more information about driving in London.
You will find that the drivers in England are very good. There is a good reason for this pattern. The test to get a London driver's license is not easy to pass. In fact, some residents fail it 5 or 6 times before they are awarded a license. Also, the roads are not as wide as they are in the United States. You can see the signs a lot better if they are closer to you.
Speeding is a big no-no in London. If you are on vacation, slow down and take your time. There are cameras that can take a picture of your car. The photographs are very clear and the evidence can be damaging. The best way to ruin a vacation is to get caught breaking the law in another country. My advice is to hire a taxi or take public transportation.