卡尔加里消防局在消防车上测试蓝色闪光灯一年，以提高紧急情况下的安全性。 Calgary Fire Department tests blue flashing lights on fire trucks for one year to improve safety during emergencies.

卡尔加里消防局启动一项试点项目，测试消防车上的蓝色闪光灯，以提高紧急情况下急救人员和公众的安全性。 Calgary Fire Department launches a pilot project testing blue flashing lights on fire trucks to improve safety for first responders and the public during emergencies. 当局批准试行一年，在 12 辆汽车上安装蓝灯。 Approval was granted for a trial period of one year, with blue lights installed in 12 vehicles. 研究表明，蓝光可显著提高弱光环境（包括恶劣天气条件下）的可见度。 Research suggests blue lights significantly enhance visibility in low-light environments, including adverse weather conditions.