The Gilles Villeneuve Formula 1 circuit is undergoing upgrades in preparation for this year's Canadian Grand Prix.
Due to the changes to the technical regulations which have resulted in faster cars this year, the safety features of most F1 circuits have needed tweaking.
While the layout of the Montreal circuit will not be altered, the safety features of the track will be revised.
Most of the guardrails and some 5,000 tires will be removed and replaced by TecPro barriers.
These red-and-white barriers made of polyethylene are filled with plastic, foam and sometimes sand, and offer a significantly better energy dispersion when a car slams into them.
The FIA has also asked for the the traditional gravel traps to be replaced by portions of asphalt as seen at other F1 tracks.
The infamous "Wall of Champions" - the concrete wall that's located at the exit of the last chicane – will have its angle modified, as the FIA has deemed it was dangerous.
Cranes, payloaders, trucks and graders are in now action at Turns 1 and 2, 5, 13 and 14. Later, work will begin at Turns 7 and 8, and 10.
A SAFER barrier - used in most NASCAR and IndyCar oval tracks - will replace the old steel guardrails at Turn 5.
The promoter expects to have the work finished by mid-May.
The Canadian Grand Prix takes place on June 9-11.