Transportation

QUESTION 2 A three leg signalized intersection on a divided highway with the characteristics shown in the figure below Right turns have exclusive right-turn lanes allowing vehicles to complete their turns before the signal. The grade is approximately level on all approaches. Approach speed is 80 kph for all approaches. All lanes are 3.6 m wide and medians are 2.5 m. PHF=0.95. Volumes and saturation flow data are given as follow Volumes and saturation flow data are given as follow Lane group 12 3 Total Volume (vph) 4560 2560 Saturation flow (vph per lane) 1800 1600 1800 1700 1600 No. of lanes Yi=qi/si 0.889 0 253 0.499 0.446 0.087 0.102 ALL answers need only NUMERICAL Values IF NO VALUE can be calculated OR no DATA available. ENTER 0 or 0-0-0 a) The intersection needs PHASES for NO CONFLICT operation (enter a number like 1 2 3 or 4). b) Define PHASES by indicating lane groups, such as 1 or 1-2 or 1-2-3 PHASE (A) includes lane groups. PHASE (B) includes PHASE (C) includes PHASE (D) includes c) Calculate Y = qi si in secs for ALL phases YA?=> YB ? => Yc?=> c4) YD? => Y ? => Lost time per phase 3 sec d) Calculate CYCLE LENGTH Click Save and Submit to save and submit. Click Save All Answers to save all answers. al Calculato YELLOW for all QUESTION 2 A three leg signalized intersection on a divided highway with the characteristics shown in the figure below Right turns have exclusive right-turn lanes allowing vehicles to complete their turns before the signal. The grade is approximately level on all approaches. Approach speed is 80 kph for all approaches. All lanes are 3.6 m wide and medians are 2.5 m. PHF=0.95. Volumes and saturation flow data are given as follow Volumes and saturation flow data are given as follow Lane group 12 3 Total Volume (vph) 4560 2560 Saturation flow (vph per lane) 1800 1600 1800 1700 1600 No. of lanes Yi=qi/si 0.889 0 253 0.499 0.446 0.087 0.102 ALL answers need only NUMERICAL Values IF NO VALUE can be calculated OR no DATA available. ENTER 0 or 0-0-0 a) The intersection needs PHASES for NO CONFLICT operation (enter a number like 1 2 3 or 4). b) Define PHASES by indicating lane groups, such as 1 or 1-2 or 1-2-3 PHASE (A) includes lane groups. PHASE (B) includes PHASE (C) includes PHASE (D) includes c) Calculate Y = qi si in secs for ALL phases YA?=> YB ? => Yc?=> c4) YD? => Y ? => Lost time per phase 3 sec d) Calculate CYCLE LENGTH Click Save and Submit to save and submit. Click Save All Answers to save all answers. al Calculato YELLOW for all