A workman sits on a barrier as he looks at flood water blocking the A555 dual carriageway road in Manchester, Britain, August 1, 2019. REUTERS/Phil Noble 

A workman talks on his phone as he looks at flood water blocking the A555 dual carriageway road in Manchester, Britain, August 1, 2019. REUTERS/Phil Noble 

Forensic investigators examine the pavement and carriageway on Chalgrove Road, where a teenage girl was murdered, in Tottenham, Britain, April 3, 2018. REUTERS/Toby Melville TPX IMAGES OF THE DAY 

Forensic investigators examine the pavement and carriageway on Chalgrove Road, where a teenage girl was murdered, in Tottenham, Britain, April 3, 2018. REUTERS/Toby Melville 

Forensic investigators examine the pavement and carriageway on Chalgrove Road, where a teenage girl was murdered, in Tottenham, Britain, April 3, 2018. REUTERS/Toby Melville 

Forensic investigators examine the pavement and carriageway on Chalgrove Road, where a teenage girl was murdered, in Tottenham, Britain, April 3, 2018. REUTERS/Toby Melville 

Forensic investigators examine the pavement and carriageway on Chalgrove Road, where a teenage girl was murdered, in Tottenham, Britain, April 3, 2018. REUTERS/Toby Melville 

A car is abandoned on a dual carriageway road near Dublin, Ireland March 3, 2018. REUTERS/Clodagh Kilcoyne 

Construction work takes place on a new Dual carriageway road near Knutsford northern England, November 28, 2016. REUTERS/Phil Noble 

Construction work takes place on a new Dual carriageway road near Knutsford northern England, November 28, 2016. REUTERS/Phil Noble 

Construction work takes place on a new Dual carriageway road near Knutsford northern England, November 28, 2016. REUTERS/Phil Noble 

Vehicles drive through the snow on the single carriageway section of the A9 near Kindallachan, Scotland November 29, 2015. REUTERS/Russell Cheyne 

A snow plough drives on the single carriageway section of the A9 near Kindallachan, Scotland November 29, 2015. REUTERS/Russell Cheyne 

A boat sails past the construction site of the Hongkong-Zhuhai-Macao bridge in Hong Kong waters April 4, 2014. The 50 km link, which includes a 29.6 km dual 3-lane carriageway in the form of bridge-cum-tunnel structure comprising a tunnel of about 6.7 km, is scheduled to be completed by 2016. REUTERS/Bobby Yip (CHINA - Tags: BUSINESS POLITICS CONSTRUCTION SOCIETY) 

Boats sail past the construction site of the Hongkong-Zhuhai-Macao bridge in Hong Kong waters April 4, 2014. The 50km link, which includes a 29.6 km dual 3-lane carriageway in the form of bridge-cum-tunnel structure comprising a tunnel of about 6.7 km, is scheduled to be completed by 2016. REUTERS/Bobby Yip (CHINA - Tags: BUSINESS POLITICS CONSTRUCTION SOCIETY) 

Hong Kong Chief Executive Leung Chun-ying (L) looks from a boat during a tour to the construction site of the Hongkong-Zhuhai-Macao bridge in Hong Kong waters April 4, 2014. The 50km link, which includes a 29.6 km dual 3-lane carriageway in the form of bridge-cum-tunnel structure comprising a tunnel of about 6.7 km, is scheduled to be completed by 2016. REUTERS/Bobby Yip (CHINA - Tags: BUSINESS POLITICS CONSTRUCTION SOCIETY) 

A car's headlights illuminates the A9 dual carriageway approach to on a clear starry night near Inverness, Scotland, January 26, 2012. REUTERS/Russell Cheyne (BRITAIN) 

Funeral services for eighteen victims of a road accident at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

A young boy rubs his eye during funeral services for eighteen victims of a road accident outside of a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

People stand outside of a church during funeral services for eighteen victims of a road accident in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

A relative touches a coffin during funeral services for eighteen victims of a road accident outside of a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

Funeral services for eighteen people, victims of a road accident at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

A coffin is carried out of a church following a funeral services for eighteen victims of a road accident in Drzewica, October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

A coffin is carried out of a church following a funeral services for eighteen victims of a road accident in Drzewica, October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

A coffin is carried out of a church following a funeral services for eighteen victims of a road accident in Drzewica, October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER RELIGION TRANSPORT) 

Funeral services for eighteen people, victims of a road accident, at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT IMAGES OF THE DAY) 

A coffin is carried during funeral services for eighteen people, victims of a road accident, at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Coffins are seen during funeral services for eighteen people, victims of a road accident, at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

Coffins are carried during funeral services for eighteen people, victims of a road accident, at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION) 

Coffins are carried during funeral services for eighteen people, victims of a road accident, at a church in Drzewica October 16, 2010. Eighteen people died in a head-on collision in central Poland on October 12, when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT RELIGION IMAGES OF THE DAY) 

The aftermath of a head-on collision is seen near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

The wreckage of a transportation van and a lorry are pictured following a crash near Nowe Miasto nad Pilica, 80 km (40 miles) south of Warsaw, October 12, 2010. Eighteen people died in a head-on collision in central Poland on Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. Most of the workers were sitting on boxes in the back of the van, police said. REUTERS/Peter Andrews (POLAND)
- Tags: DISASTER) 

The wreckage of a transportation van and a lorry are pictured following a crash near Nowe Miasto nad Pilica, 80 km (40 miles) south of Warsaw, October 12, 2010. Eighteen people died in a head-on collision in central Poland on Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. Most of the workers were sitting on boxes in the back of the van, police said. REUTERS/Peter Andrews (POLAND)
(DISASTER) 

The wreckage of a transportation van and a lorry are pictured following a crash near Nowe Miasto nad Pilica, 80 km (40 miles) south of Warsaw, October 12, 2010. Eighteen people died in a head-on collision in central Poland on Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. Most of the workers were sitting on boxes in the back of the van, police said. REUTERS/Peter Andrews (POLAND)
- Tags: DISASTER) 

The wreckage of a transportation van after a crash with a lorry is seen near Nowe Miasto nad Pilica, 80 km (50 km) south of Warsaw, October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT IMAGES OF THE DAY) 

Rescue workers remove the bodies at the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Rescue workers stand at the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Rescue workers stand at the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Rescue workers investigate the scene of the accident near Nowe Miasto nad Pilica, 80 km (49 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Rescue workers investigate the scene of a head-on accident near Nowe Miasto nad Pilica, 80 km (49 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT IMAGES OF THE DAY) 

Rescue workers stand near the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Bodies of victims are covered by black tarpaulin sheets at the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (49 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

Rescue workers stand at the scene of a head-on collision near Nowe Miasto nad Pilica, 80 km (50 miles) south of Warsaw October 12, 2010. Eighteen people died in a head-on collision in central Poland Tuesday when a van carrying seasonal apple pickers veered into the opposite carriageway in heavy morning fog and hit a lorry. REUTERS/Peter Andrews (POLAND - Tags: DISASTER TRANSPORT) 

French farmers drive tractors down a dual carriageway as they demonstrate to protest against low food and milk prices, in Nantes, western France, June 26, 2009. REUTERS/Stephane Mahe (FRANCE AGRICULTURE CONFLICT POLITICS) 

French farmers drive tractors down a dual carriageway as they demonstrate to protest against low food and milk prices, in Nantes, western France, June 26, 2009. The placard reads "Share the wealth and the production". REUTERS/Stephane Mahe (FRANCE AGRICULTURE CONFLICT POLITICS) 

A man walks next to Anderson Bridge (R) in Singapore December 19, 2008. Victoria Concert Hall is seen in the background. Anderson Bridge, which serves as a carriageway for vehicles, was opened in 1910. It was named after Sir John Anderson, the governor of the Straits Settlement from 1904-1911. REUTERS/Ho Yuen Hua (SINGAPORE) 

Dutch Queen Beatrix (C), Crown Prince Willem Alexander and his wife Maxima (R) leave the Hall of Knights to step into the Golden Carriage after the Presentation of the Dutch 2006 Budget Memorandum and the opening of the Parliamentary Year in The Hague, Netherlands September 20, 2005. REUTERS/Paul Vreeker PVR/AT 

Vehicles involved in a fatal accident lie across the southbound carriageway of the M40 motorway in Oxfordshire, March 28, 2002. One motorcyclist was killed and dozens injured in the 100-vehicle pile-up on Thursday which happened in thick fog as thousands clogged roads ahead of the Easter holiday weekend. 

Vehicles involved in a fatal accident lie across the southbound carriageway of the M40 motorway in Oxfordshire, March 28, 2002. One motorcyclist was killed and dozens injured in the 100-vehicle pile-up on Thursday which happened in thick fog as thousands clogged roads ahead of the Easter holiday weekend. 

An aerial view shows the scene following a fatal accident on the
southbound carriageway of the M40 motorway in Oxfordshire, March 28,
2002. Two people were killed and dozens injured in the 100-vehicle
pile-up on Thursday which happened in thick fog as thousands clogged
roads ahead of the Easter holiday weekend. REUTER/Paul Fievez

ASA 

An aerial view shows the scene following a fatal accident on the
southbound carriageway of the M40 motorway in Oxfordshire, March 28,
2002. Two people were killed and dozens injured in the 100-vehicle
pile-up on Thursday which happened in thick fog as thousands clogged
roads ahead of the Easter holiday weekend. REUTER/Paul Fievez

ASA 

Police move a stretcher carrying a victim of a fatal accident on the
southbound carriageway of the M40 motorway in Oxfordshire, March 28,
2002. One motorcyclist was killed and dozens injured in the 100-vehicle
pile-up on Thursday which happened in thick fog as thousands clogged
roads ahead of the Easter holiday weekend. REUTERS/Michael Crabtree

MC/ASA 

Vehicles involved in a fatal accident lie across the southbound
carriageway of the M40 motorway in Oxfordshire, March 28, 2002. One
motorcyclist was killed and dozens injured in the 100-vehicle pile-up
on Thursday which happened in thick fog as thousands clogged roads
ahead of the Easter holiday weekend. REUTERS/Michael Crabtree

MC/ASA 

Vehicles involved in a fatal accident lie across the southbound
carriageway of the M40 motorway in Oxfordshire, March 28, 2002. One
motorcyclist was killed and dozens injured in the 100-vehicle pile-up
on Thursday which happened in thick fog as thousands clogged roads
ahead of the Easter holiday weekend. REUTERS/Michael Crabtree

MC/ASA 

Vehicles involved in a fatal accident lie across the southbound
carriageway of the M40 motorway in Oxfordshire, March 28, 2002. One
motorcyclist was killed and dozens injured in the 100-vehicle pile-up
on Thursday which happened in thick fog as thousands clogged roads
ahead of the Easter holiday weekend. REUTERS/Michael Crabtree

MC/ASA 

Several kilometres of trucks line-up and cars are trapped in a snow storm as they wait on the eastbound carriageway of the northern Slovak E50 highway near the village of Vazec February 22, 2001. Snow storms paralyzed traffic on the E50 for over ten hours.

JAK 

Heavy traffic lines both carriageways of the M3 motorway during the evening rush hour near London on February 5, 2001. A 24-hour strike by drivers on the London Underground brought travel chaos to the capital's roads and busses with only eight percent of underground services running.

RUS/BR 

The westbound carriageway of the M4 motorway, one of the main routes out of London, stands empty of cars shortly after rush hour September 13, 2000 as the the effects of U.K. fuel shortages begin to show. Days of blockades have prevented fuel deliveries to petrol stations across the country, causing more than three quarters of the outlets to run dry. 

The westbound carriageway of the M4 motorway, one of the main routes out of London, stands empty of cars shortly after rush hour September 13, 2000 as the the effects of U.K. fuel shortages begin to show. Days of blockades have prevented fuel deliveries to petrol stations across the country, causing more than three quarters of the outlets to run dry.

DC 

The westbound carriageway of the M4 motorway, one of the main routes out of London, stands empty of cars shortly after rush hour September 13, 2000 as the the effects of U.K. fuel shortages begin to show. Days of blockades have prevented fuel deliveries to petrol stations across the country, causing more than three quarters of the outlets to run dry.

DC