Bicycle detection systems are beginning to catch on in new vehicles — and could soon be a standard safety feature. Volvo’s new EX30 electric crossover comes standard with the equipment, which gives occupants visual and audio cues if they are about to throw open a door in front of an oncoming bicyclist or pedestrian. Cadillac also began offering a side bicyclist alert system, which indicates when it might be unsafe to change lanes or open a door, according to the brand’s website. If safety advocates have their way, the technology could soon become more commonplace as they urge federal regulators to include bike detection in proposed rules on automatic emergency braking.