Ontario Building Code $($OBC$)$: The second storey of an office building with a sprinkler system contains $10$ suites. Each suite is $20$m wide and $30$m deep. These suites are emptied into a public corridor. The floor is $100$m x $62$m$.$ The floor$-$to$-$floor height between the two floors is $3\mathrm{.}0$m and served by two stairs and a ramp.

$8.$ How many handrails the ramp require?

$9.$ Calculate the minimum width of the ramp:

$10.$ Ramp turns $180$o after ascending $1500$mm$.$ Determine the width and the length of the ramp shaft: