The questions raised are somewhat general, but specific to a restaurant can be answered from the perspective of basic functions:

First of all, there should be enough parking spaces and parking guidance (waiter guidance, warm tips, traffic lanes, departure and other marking facilities);

Secondly, according to the plan of plain cloth in the store, in addition to providing a bathroom with enough space (with a guide sign convenient for customers to find), air conditioning, public lighting, dining table lighting, service desk (positioning and setting according to the plane shape characteristics of the store and the entrance orientation of the store, which is required to be conducive to customers' identification and handling of customers' various needs), food booth, etc., customers' cloakrooms can also be set up.

Thirdly, some special customers can be provided with corresponding service facilities, such as barrier-free access and sanitary ware for the disabled, and sober-up rooms (or seats) after people get drunk.

I hope that the above analysis will inspire the questioner, so as to inspire others.