In part b2, why do you think it means 3 aspect at 2010m spacing?
According to the calculation, 3 aspect can not fit for the requirement. Min signal spacing means the distance between any two signals, or between Red and Green signal? If take 4 aspect and signal spacing as 0.5*BD, isn't it the min spacing?
According to the calculation, 3 aspect can not fit for the requirement. Min signal spacing means the distance between any two signals, or between Red and Green signal? If take 4 aspect and signal spacing as 0.5*BD, isn't it the min spacing?

