What is the as-built PPD?
PPD can range from anything, as passengers can get on and off between stops, but assuming that the PPD would be passengers travelling from Conestoga to Fairview,
With the current rolling stock, the maximum would be, assuming the following maximum loads for the Flexity:
130 passengers (Beyond this, a vehicle is considered overcrowded) — 39,000 PPD
170 passengers (Crush Loading) — 51,000 PPD
190 passengers (No room left) — 57,000 PPD
If you're referring to Passengers Per Hour Per Direction (which I think you are), those values would be:
130 passengers/flexity — 975 PPHPD
170 passengers/flexity — 1,275 PPHPD
190 passengers/flexity — 1,425 PPHPD
If we increase frequencies to every 5 minutes and double the length of the trains, those numbers increase to:
130 passengers/flexity — 3,120 PPHPD
170 passengers/flexity — 4,080 PPHPD
190 passengers/flexity — 4,560 PPHPD
250 passengers/flexity — 6,000 PPHPD