When you come across a dark country road, a dark alleyway or an unlit driveway, your defense instincts kick in and it can be unsettling. Whether walking or driving, we all take comfort in a little bit of light to reveal our surroundings and the reason is simple: light gives us the ability to see where we’re going and, therefore, provides us a sense of safety and control. This is why street lights make such a big difference to our nighttime driving and walking experience, and when a street light is burnt out, you notice.