
Field of View from Automotive Vehicles 115
53 degrees right. The angles dening area C are 5 degrees up, 1 degree down, 10 degrees left, and
15 degrees right. The wiper area requirements for trucks (over 4500 kg), buses, and multipurpose
vehicles are specied in SAE standard J198 (SAE, 2009). Since the driver in these commercial
vehicles generally sits higher than that in passenger cars, the angles dening wiper areas A, B, and
C are specied in SAE J198 as functions of the height of the SgRP above the ground.
ObstructiOns caused by a-pillars
The left and right front roof pillars (called the A-pillars), depending upon their size and shape of ...