An improved border barrier system is disclosed. The system includes columns situated periodically along an international border, beams extending horizontally between tops of the columns, metallic based walls extending between each pair of columns, a power line extending within the beams, a continuous electric railway located on top of the horizontal surface, electric rail cars powered by the electric railway, sensor arrays located periodically along the border barrier system, stations located periodically along the border barrier system, each station including a housing structure configured for housing personnel, a power generating station or power relay station coupled to the power line and the electric railway for powering the electric railway, and a tunnel that allows the electric railway to enter one end of the housing structure and exit another end of the housing structure.

A trolley 100 for a rail 10 is described. The trolley 100 comprises a frame 110, a set S of wheels 120, including a first wheel 120A and a second wheel 120B, rotatably coupled to the frame 110 and an attachment member 130, coupled to the frame 110, for suspension of a load W therefrom, in use. The first wheel 120A is rotatable in a first plane P1 about a first axis A1 and the second wheel 120B is rotatable in a second plane P2 about a second axis A2. The first plane P1 and the second plane P2 define a line L. The trolley 100 is arrangeable in a first configuration, wherein the attachment member 130 is arranged at a first angular displacement D1 about the line L. The trolley 100 is arrangeable in a second configuration, wherein the attachment member 130 is arranged at a second angular displacement D2 about the line L, wherein the first angular displacement D1 and the second angular displacement D2 are different. A rail assembly 1, including the trolley 100 and the rail 10, is also described.

A trolley 100 for a rail 10 is described. The trolley 100 comprises a frame 110, a set S of wheels 120, including a first wheel 120A and a second wheel 120B, rotatably coupled to the frame 110 and an attachment member 130, coupled to the frame 110, for suspension of a load W therefrom, in use. The first wheel 120A is rotatable in a first plane P1 about a first axis A1 and the second wheel 120B is rotatable in a second plane P2 about a second axis A2. The first plane P1 and the second plane P2 define a line L. The trolley 100 is arrangeable in a first configuration, wherein the attachment member 130 is arranged at a first angular displacement D1 about the line L. The trolley 100 is arrangeable in a second configuration, wherein the attachment member 130 is arranged at a second angular displacement D2 about the line L, wherein the first angular displacement D1 and the second angular displacement D2 are different. A rail assembly 1, including the trolley 100 and the rail 10, is also described.

In accordance with embodiments of the invention, an elevated transportation system is provided. The elevated transportation system includes a plurality of towers. A plurality of track segments is operable to connect to the plurality of towers. A lift car is operable to move along the plurality of track segments. Each tower of the plurality of towers is operable to receive and connect one or more track segments. The plurality of towers is operable to enable the lift car to move along the plurality track segments.

In accordance with embodiments of the invention, an elevated transportation system is provided. The elevated transportation system includes a plurality of towers. A plurality of track segments is operable to connect to the plurality of towers. A lift car is operable to move along the plurality of track segments. Each tower of the plurality of towers is operable to receive and connect one or more track segments. The plurality of towers is operable to enable the lift car to move along the plurality track segments.

A transportation system includes a first support tower, a second support tower, a suspension cable extending between the first and second support towers, and a tube defining an interior channel extending between the first and second support towers. A vehicle is configured to travel through the interior channel. A tension support member has a first end coupled to the suspension cable and a second end coupled to the first tube through an actuator. The tension support member exerts tension force to upwardly pull the first tube towards the suspension cable. The actuator adjusts the tension force when the vehicle travels through the interior channel under the tension support member to reduce deflection of the tube.

A beam measuring device for measuring a monorail guide beam is disclosed. The beam measuring device includes a frame comprising a trolley adapted to traverse along a monorail guide beam and an instrumentation structure supported by the trolley and adapted to carry measuring instrumentation substantially isolated from vibration induced on the trolley by the beam as the trolley traverses the monorail guide beam.

A beam measuring device for measuring a monorail guide beam is disclosed. The beam measuring device includes a frame comprising a trolley adapted to traverse along a monorail guide beam and an instrumentation structure supported by the trolley and adapted to carry measuring instrumentation substantially isolated from vibration induced on the trolley by the beam as the trolley traverses the monorail guide beam.

A transportation system includes a first support tower, a second support tower, a suspension cable extending between the first and second support towers, and a tube defining an interior channel extending between the first and second support towers. A vehicle is configured to travel through the interior channel. A tension support member has a first end coupled to the suspension cable and a second end coupled to the first tube through an actuator. The tension support member exerts tension force to upwardly pull the first tube towards the suspension cable. The actuator adjusts the tension force when the vehicle travels through the interior channel under the tension support member to reduce deflection of the tube.

A transportation system includes a first support tower, a second support tower, a suspension cable extending between the first and second support towers, and a tube defining an interior channel extending between the first and second support towers. A vehicle is configured to travel through the interior channel. A tension support member has a first end coupled to the suspension cable and a second end coupled to the first tube through an actuator. The tension support member exerts tension force to upwardly pull the first tube towards the suspension cable. The actuator adjusts the tension force when the vehicle travels through the interior channel under the tension support member to reduce deflection of the tube.