Core Viewpoint - The transformation of an underutilized space under the Yangsigang Expressway in Hongshan District into a vibrant sports area, featuring football and tennis facilities, aims to promote youth sports and meet community fitness needs [2][3]. Group 1: Sports Facilities Development - A football field and tennis courts have been established under the Yangsigang Expressway, with the football field already operational and the tennis courts set to open after a youth tournament in late September [3]. - The football field has hosted events such as the Evening News Cup and offers free training sessions to engage local youth, with over 200 students participating in summer training programs [2][3]. Group 2: Community Engagement and Benefits - The facilities prioritize the training needs of local youth football teams and collaborate with 16 nearby schools to support campus football development [2]. - The initiative is designed to serve both youth sports growth and the daily fitness needs of residents, reflecting a dual model of operation and public service [2][3]. Group 3: Infrastructure and Accessibility - The area includes 54 parking spaces and a container-style service front for equipment storage and refreshments, enhancing the overall user experience [3]. - The project was initiated after a comprehensive cleanup and renovation of the previously neglected site, responding to significant community demand for sports facilities [3].

Core Viewpoint - The transformation of the under-bridge space at Yangsigang Expressway into sports facilities, including a football field and a tennis court, aims to promote youth sports and meet community fitness needs, benefiting thousands of residents [6][7][17]. Group 1: Sports Facilities Development - A football field and a tennis court have been constructed under the Yangsigang Expressway, covering an area of approximately 30,000 square meters [9]. - The football field has hosted events such as the Evening News Cup and offers training classes, attracting over 200 students during summer sessions [6][10]. - The tennis court is set to officially open after hosting a youth points competition in late September [10][11]. Group 2: Community Engagement and Benefits - The facilities prioritize youth training, collaborating with 16 local schools to support campus football development [6]. - Free football "Carnival" events are organized to engage youth and stimulate interest in the sport [6]. - The initiative aims to convert previously unused land into vibrant community spaces, enhancing urban aesthetics and fulfilling local sports demands [17]. Group 3: Infrastructure and Services - The tennis court area includes 54 parking spaces and a container-style service front for equipment storage and refreshments [14]. - The operational hours for the football field include free access on weekdays and weekends, requiring prior reservations [10]. - The project reflects a collaborative effort among various departments to repurpose neglected urban spaces for public use [17].