More than 3,500 police officers will be on duty in London on New Years Eve.
Some officers will be watching over the crowds from atop podiums which give a bird's eye view.
Revellers are being warned to arrive early to secure a good spot for the fireworks.
Some popular viewing areas were filled up and cordoned off as early as 8pm last year.
Chief Inspector John Williams says:
"Set off early and give yourself plenty of time to get into the viewing areas.
"Leicester Square and Trafalgar Square are often magnets for large crowds which can mean lots of people trying to get to the same tube and rail stations.
"Consider walking to a tube station a bit further away as stations like Waterloo and Charing Cross may mean long waits."
The Met police are also warning commuters of road closures in central London from 5pm.