According to CIE technical reports and consult lighting quantity standards of domestic urban motorways and international urban motorways, the paper summarized technical index on evaluating lighting quantity of our country cloverleaf. The paper certificated that TI is applicable to cloverleaf by investigating and computing high-pole lighting facilities in accordance with the present situation of cloverleaves in Tianjin and in Beijing, as well as by adopting professional lighting software Ulysee to simulate and compute.
The paper discussed on the important method firstly in which applied TI parameter which CIE recommends to compute and evaluate disability glare, and to put forward the recommended value of TI applicable to our country cloverleaves by measuring data, subjective evaluation, lighting simulation software.
China Illuminating Engineering Journal
high mast lighting
threshold increment （TI）