Shandong Province: the non-stop electronic toll collection (ETC) building project on the expressway

？？Shan？？dong Province: the non-stop electronic toll collection (ETC) building project on the expressway. The project helps Shandong Province install and renovate more than 200 electronic toll collection lanes in 17 cities so as to reduce the fuel consumption and exhaust emission resulted from waiting to pay the road toll. According to estimation, it can cut greenhouse gas emission by 2,294 tCO₂e annually.  

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