In signal timing, which statement correctly defines the split?

In signal timing, which statement correctly defines the split?

• A. The portion of total cycle length allocated to each signal phase
• B. The total cycle length
• C. The all-red interval
• D. The pedestrian crossing time

Answer: (A)

Split defines how the cycle length is divided among the signal phases, i.e., how long within one cycle each phase is allowed to proceed. This allocation is usually given in seconds or as a percentage of the cycle, and the sum of all phase splits equals the full cycle length (or 100% if using percentages). This concept is distinct from the total cycle length, which is the entire duration of one complete sequence; the all-red interval, which provides safety clearance between phases; and the pedestrian crossing time, which is the time allotted for pedestrians (often part of a phase but not the definition of split).

Split defines how the cycle length is divided among the signal phases, i.e., how long within one cycle each phase is allowed to proceed. This allocation is usually given in seconds or as a percentage of the cycle, and the sum of all phase splits equals the full cycle length (or 100% if using percentages). This concept is distinct from the total cycle length, which is the entire duration of one complete sequence; the all-red interval, which provides safety clearance between phases; and the pedestrian crossing time, which is the time allotted for pedestrians (often part of a phase but not the definition of split).