CSX will present a proposal this week to the Downtown Development Review Board to install new signs on its Downtown Northbank corporate headquarters building. Renderings of the proposed signage show how the building will look by night and day. The signage will feature the firm’s new brand image and slogan and the signs are planned on the building’s riverfront and Bay Street sides. The review board also will also consider a design for JTA’s Bus Rapid Transit shelters and review new regulations for temporary banners. The review board is scheduled to meet at 2 p.m. Thursday in the Jacksonville Economic Development Commission board room at One W. Adams St.