3 - Sightlines

Abstract

This chapter discusses various sightlines in the design of theater.The planning of seating within this volume involves the adjustment of a number of variables; some but not all of them are within the designer's power to control. The most important of these variables is one that cannot be regulated: the individual human being.Vertical sightlines must be checked on several sections as well as the center line through stage and auditorium.The section through stage and auditorium at any point is dictated by vertical sightlines that will be affected by the following factors: maximum distance desirable for the spectator farthest from the performance; depth of acting area and the vertical height above it essential to the type of performance; nearest and lowest part of the stage that must be within the unrestricted view of all spectators; and highest point in acting area that must be visible to the spectators farthest from the stage. Balcony fronts, soffits, proscenium or false proscenium, and pelmet or border must not obstruct sightlines through these extreme points. Horizontal sightlines are most critical in theaters with a proscenium stage. Given a desired acting area, sightlines will limit the width of seating that can be provided in the auditorium.