The Brace paradox phenomenon refers to the phenomenon that adding a road section to a transportation network not only does not reduce traffic delays, but also increases the travel time of all travelers on the entire transportation network. According to the above definitions, Which of the following belong to the Brace paradox:. ['er removing a 6-lane highway and building an 8-kilometer park in A. H city, many road experts were surprised to find that the urban environment has improved and traffic conditions have not deteriorated.', "To alleviate traffic congestion, G city changed several one-way lines connected to the city's main roads to two-way traffic. As a result, the number of traffic accidents increased significantly, and the traffic jam situation worsened.", 'N City also built an underground tunnel below the main road in the urban area. Because the traffic at the entrance and exit is converged, the traffic after the tunnel is more congested than before.', "W City has two new 4-lane asphalt roads that run through the city's east-west and south-north roads, and the traffic in the city is no longer as congested as before."]