$7\mathrm{.}6$ For Problem $7\mathrm{.}1,$ calculate the minimum cycle

length and the effective green time for each timing

stage $($balancing $\frac{v}{c}$ for the critical lane groups$)\mathrm{.}7\mathrm{.}6$ For Problem $7\mathrm{.}1,$ calculate the minimum cycle

length and the effective green time for each timing

stage $($balancing $\frac{v}{c}$ for the critical lane groups$).$

Assume the lost time is $4$ seconds per timing stage

and a critical intersection $\frac{v}{c}$ of $0\mathrm{.}90$ is desired.

$7\mathrm{.}1$ An intersection has a three$-$timing$-$stage signal

with the movements allowed in each timing stage

and corresponding analysis and saturation flow

rates shown in Table $7\mathrm{.}6.$ Calculate the sum of the

flow ratios for the critical lane groups.

Table $7\mathrm{.}6$ Data for Problem $7\mathrm{.}1$

Assume the lost time is $4$ seconds per timing stage

and a critical intersection $\frac{v}{c}$ of $0\mathrm{.}90$ is desired.

The answer is not $290$s