used to be more common in the past. In recent years, new tunnels such as the 7.4km long Vaðlaheiðargöng near Akureyri in the north, have reduced the need to close the road due to snow. Prior to rerouting, the route between Breiðdalsvík and Egilsstaðir (over the Breiðdalsheiði plateau) in the east was often closed in winter. Route 1 was rerouted in November 2017, now using the somewhat sinuous coastal route via Reyðarfjörður, using (now former) Routes 96 and 92 to travel between the towns. Natural hazards Route 1 crosses a few glacial plains, such as Skeiðarársandur, which made the original road construction difficult in the 1970s. In addition, the Skeiðarársandur plain is subject to frequent glacial floods during or after eruptions on the nearby Grímsvötn volcano. Bridges and other stretches of road over the plains have had to be rebuilt as a result, notably during the eruption of Eyjafjallajökull in 2010, when the ring road was severed for several days in the south. These are not considered to a be a risk to everyday travellers as the roads are closed well in advance of a warning of a volcanic eruption. Traffic Since its completion, the ring road has seen constant growth in traffic, and has seen an even quicker growth during the recent rise in number of tourists arriving in Iceland. Average traffic recorded along the ring road rose from a consolidated count of 57,000 vehicles per day in 2005 to over 90,000 vehicles per day in 2019. Route 1 is popular with tourists since it covers most of the country and many sights of interest are located near to the route. It has long been a popular route with Icelandic families going on summer vacation, but in recent years the route is becoming more popular with foreign tourists who either rent a car or bring their own on the ferry to Seyðisfjörður. Traffic levels on the road vary considerably between locations: in and near Reykjavík around 20,000-50,000 vehicles use the road daily, rural sections serving routes between Reykjavik and Akureyri in the west and Reykjavík and Vík in the south see traffic volumes of around 2,000 to 5,000 vehicles per day. The stretches farthest away from larger towns, mostly in the sparsely inhabited east of the country see an average around 500 vehicles per day. Traffic on the ring road is also subject to considerable variation between the winter