铁路公路板块9月18日跌1.31%，富临运业领跌，主力资金净流出6.57亿元

Core Points - The railway and highway sector experienced a decline of 1.31% on September 18, with Fulin Transportation leading the drop [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] Sector Performance - Fulin Transportation (002357) closed at 10.70, down 5.81% with a trading volume of 160,200 shares and a transaction value of 177 million yuan [2] - Jiangxi Changyun (600561) closed at 6.75, down 3.30% with a trading volume of 74,500 shares and a transaction value of 50.86 million yuan [2] - Shentong Metro (600834) closed at 8.64, down 2.92% with a trading volume of 97,500 shares and a transaction value of 85.17 million yuan [2] - Other notable declines include Western Entrepreneurship (000557) down 2.58%, Hunan Investment (000548) down 2.35%, and Wuzhou Transportation (600368) down 2.24% [2] Capital Flow - The railway and highway sector saw a net outflow of 655 million yuan from main funds, while retail funds had a net inflow of 398 million yuan [1][2] - Speculative funds recorded a net inflow of 259 million yuan [1][2]