It's about the same figure that was forecast for last year... But the 2015 official crowd count turned out to be more than double that at 128,700 – a sizeable record-breaker for the war memorial's ceremony.

Assistant director of public programs Anne Bennie said the Dawn Service was "always challenging in terms of numbers" but that it could safely accommodate a similar number of visitors to last year, which was the ANZAC centenary.

"When we exceed 50,000 our parade ground is full," she said.

"But we have continued to have in place large screens that enable people further away to have a good view."

Ms Bennie was looking forward to a likely warmer, milder morning than many previous years and to seeing new and familiar faces in the crowd.

"I'm really hoping again that people who were here last year realise it is something they should do as their annual recognition of those who have fought and served for our country," she said.

"And for those who haven't been before to come and show their respects at the war memorial on Monday."

Readings, from diaries and letters, are scheduled to begin at 4.30am with the Dawn Service at 5.30am and the national service at 10.30am.

While the war memorial fronted enough people to fill one and a half Melbourne Cricket Grounds last year, the influx of commuters using public transport left many stranded for more than an hour and some to miss out on the service.

To prevent this from happening again, the ACT government has introduced a new free Register to Ride scheme. People can go online or call ACTION to register their trips in advance and allow buses to be allocated accordingly.

ACTION chief operating officer Bren Burkevics said it would "absolutely" make for smoother and more efficient transport, with 1200 people registered so far.

"The management of registrations is capped at the maximum capacity of vehicles at each location," he said.

"So people shouldn't be left stranded if they go through a process to register to ride, and there would be a minimal chance of the capacity exceeding the demand we've got at each location."

ACT Policing have warned of double demerits for the ANZAC Day long weekend.

Officer-in-charge of traffic operations, Station Sergeant Susan Ball, urged people to take breaks if travelling interstate and be patient on the roads.

On ANZAC Day, a number of clubs across the ACT will again be holding two-up tournaments and raising funds for Soldier On, a charity supporting Australian Defence Force members.

For more information on the Dawn Service, two-up locations and other events around the region, see our Anzac Day Guide.