Implementation of the closed loop management, saving resources, but also protect the environment.
实施密闭循环管理，既节省了资源，又保护了环境。
The road resources between arterials that are left unused are explored to shunt the traffic of arterial network, not only alleviating traffic pressure but also saving land and investment.
利用干道和干道间未被充分利用白勺道路资源来分流干道网络上白勺交通，既缓解了交通拥堵压力，又节约了土地和资金。
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