– the first signal (Great Britain)

• 1868

• 1918

• 1930

• 1982

– manually operated control with 3 color signals (New York, USA)

• 1918

• 1926

• 1930

• 1982

– first automatic traffic signal (Great Britain)

• 1868

• 1918

• 1926

• 1982

– first traffic actuated signal was used

• 1868

• 1930

• 1926

• 1982

– computer controlled traffic signal system in Metro Manila became operational;

• 1918

• 1930

• 1926

• 1982

8 signalized intersections along Quezon Avenue were integrated into Phase I

• 1984

• 1985

• 1990's

• 1982

start of Phase II covering additional 170 intersections up to and beyond EDSA.

• 1985
• 1984

• 1990's

• 1930

SCATS system was adapted in Metro Cebu and Metro Manila

• 1990’s

• 1926

• 1930

• 1985

SCATS

Spanish Period