Dangerous driving

Can you finally DO SOMETHING about calming the Rat Run that is Sydney Road during peak traffic hours? I have witnessed three accidents in the last week alone where residents cars have been hit by speeding vehicles that use Sydney Road to avoid the traffic light junction on Sidcup High Street. I work from home, looking into the street all day and witness cars speeding at 50 and 60mph up and down the road every morning and evening. Apart from the repeated damage caused to parked cars, this situation will lead to someone getting injured as well, perhaps grievously so.