The Calgary Police Service have issued a travel advisory ahead of the G7 Summit taking place in Kananaskis June 15 to 17. Those getting on a plane are advised to give themselves extra time during that time. As a precaution for G7 delegates and world leaders, the tunnel on Airport Trail N.E. will be closed beginning on 1 a.m., Sunday, June 15, through to Wednesday, June 18. For people coming from the east side of the city to YYC Airport, use Country Hills Boulevard N.E., to Barlow Trail N.E., as an alternative route. Airport Trail N.E. will remain open from Deerfoot Trail N.E., to Barlow Trail N.E. - only the tunnel itself will be inaccessible. The off-ramp from 19 Street N.E., to westbound Airport Trail N.E., will also be closed during this period. When arriving at the airport, vehicles are not allowed to stop or park around the perimeter of the airport property from June 14 to 18. The north end of McCall Way will be restricted to employee and business traffic only, with a security checkpoint in effect.