La sécurité sera cruciale lors des concerts de Taylor Swift à Toronto

As Toronto readies for Taylor Swift’s arrival this week for shows expected to draw tens of thousands to the downtown core, some crowd management and planning experts say the city and its residents should take additional precautions to ensure safety as the city accommodates visitors. Swift arrives before an NFL football game between the Kansas City Chiefs and the Denver Broncos Sunday in Kansas City, Mo. THE CANADIAN PRESS/AP/Ed Zurga

TORONTO - As Toronto readies for Taylor Swift’s arrival this week, some crowd management and planning experts say additional safety precautions should be taken when tens of thousands of fans fill the city's downtown core on show nights.

That means being prepared for a sudden shift in crowd dynamics and severe traffic gridlock, despite planned road closures, the experts say.

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