Huge crowds are expected for the Great Manchester Run on Sunday.

About 35,000 runners will line up at the start line before completing either 10km (6.1 miles) or the 13.1 mile (21km) half-marathon course.

Runners and spectators alike are being urged to carefully plan their journeys into the city centre, since many major roads will be closed for much of the day.

Several buses will also be diverted, while transport bosses have also warned that Metrolink tram services will be very busy.

Where are the race routes?

A staggered start will be in operation, with designated waves of participants beginning their race between 08:10 and 08:40 BST. Those participating in the 10k will also be subjected to a staggered start, from 11:30 to 13:10.

Starting on Portland Street, the 10K takes in Salford and the city centre.

Meanwhile, the half-marathon route stretches out to the east of the city.

Both races finish on Deansgate.

Which roads are closing?

Manchester City Council said roads along the courses would be closed to traffic for the entire duration of the event. Some will remain shut untill 23:00.

Key closures include Liverpool Road and Tonman street, which will be closed from 06:00 on Saturday until Sunday evening.

Sections of Deansgate will be subject to closures from as early as 02:00 on Sunday.

Full details of the road closures can be found on the Manchester City Council website.

Will I be able to get the tram?

Transport for Greater Manchester (TfGM) has advised that trams are the best bet for spectators.

There are stops close to key vantage points, including St Peter's Square for the start line, the Imperial War Museum for the mid-race point, and Deansgate Castlefield for the finish.

TfGM said all lines, in particular the Eccles, Altrincham to Etihad Campus, and Trafford Park Lines, are expected to be much busier than normal throughout the day.

There will be a 15-minute service on all lines, and stops with more than one service available will have more frequent trams.

What about buses?

On Saturday, Liverpool Road will be closed to enable event organisers to prepare for the event. Consequently, the 33 and Free Bus 1 services will operate on diversion throughout the day on Saturday, as well as after the run concludes on Sunday.

There will be a significant number of phased closures on other roads surrounding the race route. Bus services on affected routes will operate on diversion from the first bus until further notice on Sunday.

The full list of diversions is available of the TfGM website.