Organisers admitted earlier this month that 90 per cent of seats for the Paralympic Games remain yet to be sold.

Weir, who followed double Paralympic gold at Beijing 2008 with victories in the 800, 1500 and 5,000 metres and marathon at London four years later, is keen for the Brazilian event to continue the upward curve of Paralympics in recent times.

"London was a great success and I think that was largely due to the work of the organisers and Sebastian Coe," he told insidethegames here today at an event marking the launch of this year's Virgin London Marathon.

"I don't know how much involvement the International Paralympic Committee (IPC) have had and to be honest I do not think it will be as good.

"But I still hope it will be a success and locals will get behind the event.

"In this day an age, we expect the Paralympics to be level with the Olympics."

Athletics at both the Olympics and Paralympics is due take place at the 60,000 capacity João Havelange Stadium in the centre of the city, a journey of up to an hour from the Athletes' Village in Barra de Tijuca where the British team will be based.

Weir, who has never visited or raced in Brazil before, plans to compete in the marathon but it yet to make up his mind on how many track events he will attempt.

This will depend on the timetable, he said, with the greater travelling distance meaning he is less likely to attempt to retain all the titles he won at London 2012. 

The 36-year-old, born with a spinal cord transection that left him unable to use his legs, has competed sparingly on the track in recent seasons and won just a solitary 1500m silver at last year's IPC World Championships in Doha.

He is confident of being back to his best by the summer, however.

In the meantime, Weir is focusing on the road, and plans to compete at both the Boston and London Marathons this spring, which take place just six days apart on April 18 and 24.