For thousands of workers the disruption will mean finding alternative routes into work - arranging to work from home, or for longer-distance commuters agreeing with their employer that they work at one of its offices outside of London during the Games.
Acas advises employers need to ensure they plan ahead of the Games and consider more flexible working arrangements to minimise potential disruption, manage staff expectations and ensure business runs smoothly.
John Taylor, Acas chief executive, said: "By planning ahead employers will avoid problems later on. Your business operations could potentially look quite different during the Games as employers adapt their policies and procedures."
For firms based in the capital this might mean having a skeleton staff in the office while others temporarily work from home. If you're a business owner with more than one site around the country you might want to consider temporarily relocating staff to another site if possible. Employers could also consider working round problems by temporarily altering the working hours to avoid peak congestion times.
Taylor added: "Employers may want to take a more flexible approach to matters such as working hours and location during the Games. Simply making small but significant adjustments will mean a happier and more productive workforce this summer."
