Airport regularly occupied space

Saliha, If you are still in design stage, I would suggest incorporating daylight in that area because typically those area in airport still require significant illuminance level (as I remember airport requires typically around 200 lux in those areas). By incorporating daylight, it will help you to reduce energy usage. If you want to exclude, in my opinion, you may still need to include check-in counters or areas where the staffs work in there and where the passangers sit. You may try to exclude other areas and assume them as corridors. Additionally narrative may be required by the reviewer if he/she doesn't agree with your exclusion.

Saliha, I'll second what Eddy said about incorporating daylight into those spaces first instead of trying to determine whether they will be regularly occupied or not to meet a credit requirement. According to the regular occupied space matrix dated July 2012, only ticket and agent counters and club lounges are considered regularly occupied. However, it is noted that these spaces should be designed as regularly occupied, and therefore if designed as, then would be. I would say that arrival halls, baggage claim, and boarding gates can be excluded. But departure halls would be a tough argument. I'm assuming everyone has flown and know that you are typically in departure halls areas for at least an hour, especially if you are changing flights.