Drivers and passengers wait on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

A driver looks around on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

(131001) -- NANNING, Oct. 1, 2013 (Xinhua) -- Vehicles line up at the Langdong toll station of the Guilin-Beihai Highway in Nanning, south China's Guangxi Zhuang Autonomous Region, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Huang Xiaobang)

(131001) -- NANNING, Oct. 1, 2013 (Xinhua) -- Vehicles line up at the Langdong toll station of the Guilin-Beihai Highway in Nanning, south China's Guangxi Zhuang Autonomous Region, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Huang Xiaobang)

Passengers wait on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

Drivers and passengers get out of vehicles as their cars are stranded on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

Drivers and passengers get out of vehicles as their cars are stranded on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

Drivers and passengers get out of vehicles as their cars are stranded on the Chengdu-Ya'an Highway in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)

A girl plays on the Chengdu-Ya'an Highway as vehicles are stranded in southwest China's Sichuan Province, Oct. 1, 2013. Highways witnessed a surge in traffic as the Chinese government scrapped the expressway tolls for cars with seven seats or fewer during the seven-day national holidays. (Xinhua/Li Qiaoqiao)