How small is small?

According to the Sydney Morning Herald, AAP or perhaps Airbus itself, small is an aircraft of around 100 seats. The report states in part: "Small jets could soon use Bankstown (June 21, 2006 - 9:49PM). Bankstown Airport in Sydney could be used for domestic commercial flights by small jet aeroplanes within a few years.European aeroplane manufacturer Airbus met with Bankstown Airport to discuss commercial flights by the A318 100-seat aircraft between Bankstown and Australian state capitals." Full article here.

Now I agree that using Bankstown to its fullest makes sense, but 100 seats? Steep glideslope? Mixed with a huge volume of light aircraft? I haven't flown out of Bankstown for probably 30 years (feels like just yesterday) and it used to be pretty hairy with the mix of faster and slow aircraft in circuit to parallel runways. Add in a Learjet and it gets v. interesting. That aside, I've seen aircraft the size of Vickers Viscounts at Bankstown and it seemed to cope. On the other hand some of the runways have been closed recently, I believe, so the options for separating traffic may have been reduced. Lastly there is that old problem with a clash with Sydney's runway 07/25... let alone the neighbours and their opinions!