Английская Википедия:Dagen H

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Файл:Kungsgatan 1967.jpg

Kungsgatan, Stockholm, 3 September 1967, during the night Sweden had changed from left-side traffic to right-side traffic

Файл:Dagen H.svg

Dagen H campaign logo

Файл:Hamngatan 1966.jpg

Left-hand traffic in Stockholm in 1966

Шаблон:Lang (H-day), today usually called "Шаблон:Lang" (Шаблон:Lit), was on 3 September 1967, the day in which Sweden switched from driving on the left-hand side of the road to the right. The "H" stands for "Högertrafik", the Swedish word for right-hand traffic. It was by far the largest logistical event in Sweden's history.

Файл:Dagen H Headlamp.jpg

Headlamp sold in Sweden not long before Dagen H. Opaque decal blocks the lens portion that would provide low beam upkick to the right, and bears warning "Not to be removed before 3 September 1967".

Файл:Dagen-H-gloves.jpg

A pair of coloured gloves used in 1967 by Swedish authorities in order to remind drivers they should drive on the right as the traffic was changed

Background

There were various arguments for the change:

• All neighbouring countries drive on the right, including Norway and Finland, with which Sweden shares land borders, with five million vehicles crossing annually.
• Approximately 90 percent of Swedes drove left-hand drive vehicles, and this led to many head-on collisions when passing on narrow two-lane highways. City buses were among the very few vehicles that conformed to the normal opposite-steering wheel rule, being right-hand drive (RHD).

However, the change was unpopular; in a 1955 referendum, 83 percent voted to keep driving on the left. Nevertheless, the Swedish Parliament approved Prime Minister Tage Erlander's proposal on 10 May 1963 of right-hand traffic beginning in 1967, as the number of cars on the road tripled from 500,000 to 1.5 million and was expected to reach 2.8 million by 1975. The Swedish Commission for the Introduction of Right-Hand Driving (Statens högertrafikkommission, HTK) was established to oversee the change. It also began implementing a four-year education programme on the advice of psychologists.

The campaign included displaying the Dagen H logo on various commemorative items, including milk cartons and underwear. Swedish television held a contest for songs about the change, and the winning entry was "Håll dig till höger, Svensson" ('Keep to the right, Svensson') written by Expressen journalist Peter Himmelstrand and performed by The Telstars.

As Dagen H neared, every intersection was equipped with an extra set of poles and traffic signals wrapped in black plastic. Workers roamed the streets early in the morning on Dagen H to remove the plastic. A parallel set of lines was painted on the roads with white paint, then covered with black tape. Before Dagen H, Swedish roads had used yellow lines.Шаблон:Citation needed Approximately 350,000 signs had to be removed or replaced, including some 20,000 in Stockholm alone.

Vehicles had to have their original left-hand-traffic headlamps replaced with right-traffic units. One of the reasons the Riksdag pushed ahead with Dagen H despite public unpopularity was that most vehicles in Sweden at the time used inexpensive, standard-size round headlamps, but the trend towards more expensive model-specific headlamps had begun in continental Europe and was expected to spread through most other parts of the world. Further delay in changing over from left- to right-hand traffic would have greatly increased the cost burden to vehicle owners.Шаблон:Citation needed

The switch

On Dagen H, Sunday, 3 September 1967, all non-essential traffic was banned from the roads from 01:00 to 06:00. Any vehicles on the roads during that time had to follow special rules. All vehicles had to come to a complete stop at 04:50, then carefully change to the right-hand side of the road and stop again (to give others time to switch sides of the road and avoid a head-on collision) before being allowed to proceed at 05:00. In Stockholm and Malmö, however, the ban was longerШаблон:Sndfrom 10:00 on Saturday until 15:00 on SundayШаблон:Sndto allow work crews to reconfigure intersections. Certain other towns also saw an extended ban, from 15:00 on Saturday until 15:00 on Sunday.Шаблон:Citation needed

One-way streets presented unique problems. Bus stops had to be constructed on the other side of the street. Intersections had to be reshaped to allow traffic to merge.Шаблон:Citation needed

Results

The relatively smooth changeover saw a temporary reduction in the number of accidents. On the day of the change, only 157 minor accidents were reported, of which only 32 involved personal injuries, with only a low number being serious. On the Monday following Dagen H, there were 125 reported traffic accidents, compared to a range of 130 to 198 for previous Mondays, none of them fatal. Experts suggested that changing to driving on the right reduced accidents while overtaking, as people already drove left-hand drive vehicles, thereby having a better view of the road ahead; additionally, the change caused a marked surge in perceived risk that exceeded the actual level, and thus was followed by very cautious behaviour that caused a major decrease in road fatalities. Indeed, fatal car-to-car and car-to-pedestrian accidents dropped sharply as a result, and the number of motor insurance claims went down by 40%.Шаблон:Citation needed

These initial improvements did not last, however. The number of motor insurance claims returned to "normal" over the next six weeks and, by 1969, the accident rates were back to the levels seen before the change.

Trams in central Stockholm, in Helsingborg and most lines in Malmö (which ultimately abolished its tram system in 1973) were withdrawn and replaced by buses, and over one thousand new buses were purchased with doors on the right-hand side. Some 8,000 older buses were retrofitted to provide doors on both sides, while Gothenburg and Malmö exported their left-traffic buses to Pakistan and Kenya.

Although all road traffic in Sweden changed to the right-hand side, railways and metro systems did not switch to the new rule and continued to drive on the left, with the exception of tram systems. Additionally, many of them were abandoned as a result of Dagen H; only the trams in Norrköping and Gothenburg and three suburban lines in the Stockholm area (Nockebybanan and Lidingöbanan) survived. Gothenburg faced high costs for reconfiguring trams, while Stockholm's budget only covered purchasing new buses, since the remaining lines had bidirectional trams with doors on both sides. In any event, most trams in Stockholm were replaced by the metro, a decision made long before the Dagen H decision.Шаблон:Citation needed

Fellow Nordic country Iceland changed to driving on the right in May 1968, on a day known as H-dagurinn.

See also

• 730 (transport)
• Switch to right-hand traffic in Czechoslovakia
• Transport in Sweden
• Switch to right-hand traffic in Iceland

External links

• Television coverage of changeover, Sveriges Television
• The Day Sweden Turned Right, BBC World Service, 2 September 2016
• Border crossing between Sweden and Finland, 1967
• "A 'thrilling' mission to get the Swedish to change overnight", BBC, 18 April 2018