 Some tunnels are, or have been, built to protect the residents of nearby villages and hamlets from the noise emissions.The A16 was not one from the start to the national motorway network in Switzerland, although there were initial projects of Jura rapid-traverse between Biel and Belfort, as early as 1964.The inclusion of the A16 in the plan of the national road network came in 1984, after the population had approved construction in the Canton of Jura, with a large majority (71%).