Roads: One of the two main crossings over the Severn between Wales and England has reopened.
At that point the Welsh government wants to take control of the M4 and M48 crossings.
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Middle Eastern and European countries use iris scans to recognize travelers at airports and border crossings.
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The crossings are safe so long as people heed the warning signs, he added.
She added that increased safety features had been made at 2, 500 of the country's 6, 500 crossings.
Network Rail said the surest way to prevent any accidents was to close level crossings.
BBC: Level crossings: Wales safety work after 33 near misses
He said safety, rather than cost, should be the top priority when upgrading crossings.
Such disasters seem inevitable given the recent upsurge in illegal migration by perilous sea crossings.
It said there were 204 incidents at Welsh crossings in 2010, many involving vehicles.
Last year, Network Rail released footage in Llanelli to highlight the potential dangers of level crossings.
Since then, ports have been upgraded, roads tarred, and red-tape at border crossings trimmed.
"There are more crossings in Texas because of towers built in Arizona, " he said.
Still, spurred by 25 river crossings and other infrastructure, Shanghai's center of gravity has shifted.
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The Association of Train Operating Companies said getting rid of the crossings would be "hugely challenging".
They had arrived from another valley and were attempting an intricate series of crossings.
Some places we can restore, but some are more difficult - especially the major road crossings.
Trucks would be allowed to cross the border only at crossings where inspectors are on duty.
Four security fences and a team of border patrol vehicles deter improvised river crossings.
The report suggests replacing the system with two-way roads, increasing signage and providing more crossings.
For the past decade, American policy has been directed at making illegal crossings harder.
The report suggested replacing the system with two-way roads, and providing more crossings and signs.
Hundreds of motorists are continuing to risk their lives at train level crossings, Network Rail has warned.
The multi-million pound project, which began in April, will see improvements made to paving, lighting and crossings.
Network Rail, responsible for running the railways, says there are currently 7, 993 level crossings on the network.
There is still much to do and we are committed to doing what is necessary to improve our level crossings.
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The coyotes had to shift tactics after the Border Patrol clamped down on the urban border crossings.
The statement from Mexican authorities on Monday suggests that attempted border crossings by boat are drawing increasing concern.
We even had police on bridges and motorway crossings and things like that, we were just flat out.
The consultant's report suggested replacing the "gyratory" system with two-way roads, and providing more pedestrian crossings and signs.
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Malian security forces have erected a series of checkpoints around the town that amount to internal border crossings.
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