A section of Main Street, an urban arterial street with seven (7) traffic signalized intersections, is...

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绷 A section of Main Street, an urban arterial street with seven (7) traffic signalized intersections, is shown in the following figure below. The traffic signals at each intersection have a total cycle length of 100 seconds with 60 seconds of green (and yellow) time on Main Street. It is desirable to coordinate these seven signals to improve traffic flow on North Capitol Street. A progressive signal system having a maximum width of green band for movement from the 1st Avenue intersection toward 7th Avenue intersection, with a progressive speed of 40 mph is to be designed. I 650' 1 750' I 600' 1st Ave 2nd Ave 2) 3) Main Street 3rd Ave 550' 1 450' 1 650' I 4th Ave Not to scale 5th 6th 7th Ave Ave Ave The beginning of the green phase on 1st Avenue is used as a zero time base. Show all your calculations (20%) 1) The offset at 4th Avenue. The maximum progressive band width for travel on Main Street between 1st Avenue and 7th Avenue. The slowest speed (in mph) that a vehicle can travel from 1 Avenue toward 7th Avenue and encounter a green phase at each intersection with this progressive signal system. 4) The fastest speed (in mph) that a vehicle can travel from 1 Avenue toward 7th Avenue and encounter a green phase at each intersection with this progressive signal system. 绷 A section of Main Street, an urban arterial street with seven (7) traffic signalized intersections, is shown in the following figure below. The traffic signals at each intersection have a total cycle length of 100 seconds with 60 seconds of green (and yellow) time on Main Street. It is desirable to coordinate these seven signals to improve traffic flow on North Capitol Street. A progressive signal system having a maximum width of green band for movement from the 1st Avenue intersection toward 7th Avenue intersection, with a progressive speed of 40 mph is to be designed. I 650' 1 750' I 600' 1st Ave 2nd Ave 2) 3) Main Street 3rd Ave 550' 1 450' 1 650' I 4th Ave Not to scale 5th 6th 7th Ave Ave Ave The beginning of the green phase on 1st Avenue is used as a zero time base. Show all your calculations (20%) 1) The offset at 4th Avenue. The maximum progressive band width for travel on Main Street between 1st Avenue and 7th Avenue. The slowest speed (in mph) that a vehicle can travel from 1 Avenue toward 7th Avenue and encounter a green phase at each intersection with this progressive signal system. 4) The fastest speed (in mph) that a vehicle can travel from 1 Avenue toward 7th Avenue and encounter a green phase at each intersection with this progressive signal system.

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