Braking deceleration of Airbus A320

[iat]

Hi, I have an assignment in which I need to find the time and distance it takes for an A320 to brake from 30 knots to a full stop.

To do so I need to know the braking deceleration during taxi.

I have only been able to find the deceleration values for autobrake i.e.

LO - 2m/s2
MED - 3m/s2
MAX - 6m/s2

Am I right to say that autobrakes are off during taxi? What are the deceleration values of manual braking during taxi?

Thanks in advance.