The Marine who saves his buddies in a firefight, the cop who rescues a child from a well — the challenges they face are clear and simple and isolated from the human mess. Capt.
In "Chungking Express" actor Tony Leung plays a cop living in a small flat beside the escalator, and scenes from thriller "Infernal Affairs 3" were set in the neighborhood's Pottinger Street.
Consider putting a RESTful JSON controller into your project and using it as a virtual "traffic cop" that sends requests to and accepts responses from your data source.