“发达梦乡”回答的解:1)依题设有 120km/h车道限定的车流量N1=(1h×120km/h)/(120×2)m+1 100km/h车道限定的车流量N2=(1h×100km/h)/200m+1 则两条车道种限定的车流量之比K=N1/N2=12)车流量大最大允许值时 120km/h车道车辆总数A=80×1000m/240m+1 100km/h车道车辆总数B=80×1000m/200m+1 则双向共四车道车辆总数C=(A+B)×2=1471