陈吉宁龚正黄莉新胡文容朱忠明深入基层一线和重大工程建设现场，慰问奋战高温的广大劳动者

Group 1 - The city of Shanghai is facing extreme heat, prompting city leaders to visit frontline workers and express gratitude for their efforts in maintaining urban safety and order [1][4][7] - Emphasis is placed on the importance of implementing heat prevention measures and ensuring a good working environment for laborers [1][4][9] - The construction of significant projects, such as the Shanghai International Medical Innovation Center, is being closely monitored to ensure safety and quality during high-temperature conditions [9][10] Group 2 - Traffic management is a priority, with police and auxiliary officers working diligently to maintain road safety and order during peak hours and extreme weather [4][10] - The sanitation and environmental services are challenged by high temperatures, with workers being recognized for their contributions to keeping the city clean [7][11] - The electricity supply is under pressure due to high demand, highlighting the need for effective management and support for utility workers [9][10]