摘要:
A roundabout for vehicular traffic is provided from a plurality of modular blocks arranged in a generally circular roundabout pattern and affixed to a roadway or ground surface at an intersection of vehicle roadways. Roundabouts can be formed in any desired diameter. In some embodiments, the modular blocks can have a trapezoidal plan shape laid out in concentric rings. The trapezoidal shaped blocks can be cut from a length of board having a constant width and thickness. The modular blocks can be provided as a kit of parts delivered to worksite at an intersection of vehicle roadways where a roundabout is desired. Splitter islands, sidewalks, and curbing of blocks having appropriate shapes can also be provided.
摘要:
A modular roundabout or traffic calming system with interlocking connectors and a method of installation are provided. A plurality of boards is arranged in a pattern on a ground surface at an intersection of vehicle roadways, the pattern including one or both of a central island and a splitter island. At least some of the boards forming a perimeter of the pattern are affixed to the ground surface. At least some of the boards forming interior boards are interconnected at adjacent edges with connectors. The connectors can include a hinge joint so that the interconnected boards can be folded or rolled. A kit for a modular roundabout or traffic calming system is also provided.
摘要:
An airport runway arrangement for commercial aircraft comprises a first runway section, a second runway section extending substantially in prolongation of the first runway section and an intermediate section between the first and second runway sections.
摘要:
A method of forming tunnels(6), and tunnels formed thereby, said tunnels in one embodiment being of a form to carry transport routes (1) such as rail and road transport therealong. The method allows the tunnel to be formed from one or more access points (2) by allowing the tunnel structure (6) to be progressively extended out from the tunnel by advancing deck structures (24) along guide means (20) which are formed as part of a base structure (18). The deck structures (24) can also be used to support excavation equipment (28) and/or act as transport routes for access to the leading edge of the tunnel as it is formed. This greatly reduces the need for separate access and works to be provided adjacent to the tunnel as it is formed and therefore reduces the level of reinstatement works required after the tunnel has been formed.
摘要:
A traffic-light-free overpass at intersections has roads arranged as follows: arranging from west to east a straight lane for ground-level motor vehicles, a straight lane for ground-level non-motor vehicles and pedestrians, a left-turn lane for ground-level motor vehicles, a right-turn lane for elevated motor vehicles; arranging from east to west a straight lane for elevated motor vehicles, a straight lane for elevated non-motor vehicles and pedestrians, a left-turn lane for elevated motor vehicles, a right-turn lane for ground-level motor vehicles; arranging from south to north a straight lane for underground motor vehicles, a straight lane for underground non-motor vehicles and pedestrians, a right-turn lane for elevated motor vehicles, a left-turn lane for elevated motor vehicles, a section of straight lane for elevated motor vehicles, a left-U-turn lane for underground motor vehicles; arranging from north to south a straight lane for underground motor vehicles, a straight lane for underground non-motor vehicles and pedestrians, a left-turn lane for ground-level motor vehicles, a right-turn lane for ground-level motor vehicles, and a left-U-turn lane for underground motor vehicles. The traffic-light-free overpass at intersections of this functional invention is built on the established roads rather than the new lands, which saves the capital investment, and has a complete function, where this overpass has exclusive lanes in each direction without crossings. The scale of the overpass is 5 times less than those in the market, which is beneficial to the rational use of the metropolitan tracks and traffic resources.
摘要:
A highway system for vehicular traffic which includes an intersection between a main road and a secondary road, each having two traffic directions separated by a center line. The main road has a barrier along its main section for preventing direct crossing by traffic from the second road, and bypasses for each traffic direction. It further has barriers for directing traffic into the bypasses. A further barrier defines a return stretch of the bypass, the return stretch not having a barrier and being such as to permit merging of the two opposite directions of the main road traffic.
摘要:
The invention relates to a roadway for dual-mode vehicles with a transition region from non-trackbound to trackbound traffic. On the roadway used as an entering roadway, the transverse guide bar on the driver's side, in the area of the transition region, is extended further into the area of the roadway, which can be used non-trackbound, than the oppositely located transverse guide bar, which is widened slightly funnel-like. The two transverse guide bars of the opposite roadway, which can be used for exiting, end at a mutually equal level. To create an adequately large transverse distance between the roadways in the area where the vehicles filter in, the roadway which can be used as an entering roadway runs with a slight bulge in the area of the transition region; moreover, this provides the possibility of a further adjoining roadway.
摘要:
The Interpass: Uninterrupted, Grade-Level Interchange having One-way Approach and Departure Legs is a geometric design for an at-grade interchange of one-way roadways that has no conflict points and which allows uninterrupted, uniform-velocity traffic flow. The subject invention is neither an overpass, nor an underpass, nor an at-grade intersection, nor a grade-separated interchange, and it has comparatively few of the negative qualities associated with those types of roadway junctions. Uninterrupted, grade-level interchanges of the subject design, when connected into a directed transportation network having one-way roadway segments, can constitute the nodes of an intrinsically-safe, grade-level, arterial or collector transportation facility with superior controllability, efficiency and safety, compared to those of traditional facilities.
摘要:
Personal transportation system includes plurality of personal transportation vehicles (PTVs) driven on a track network with series of track sections. PTV main section has lateral width adapted to contain single occupant. PTV driving mechanism propels PTV and includes track engaging element protruding downwards from main section and having narrow lateral width such that main section is prone to fall over when PTV is at rest. The space between lateral width of main section and track engaging element can be occupied by public infrastructure. Each track section includes a ground portion, minimally adapted to accommodate track engaging element lateral width, and an empty space above ground portion, free of non-transient obstacles and minimally adapted to accommodate main section lateral width. A guidance mechanism guides PTV along track network and prevents PTV deviating from track sections. A stabilization mechanism stabilizes PTV along track network and prevents PTV from falling over when turning/merging/diverging.
摘要:
A computer program product for intersection design generation and evaluation method is provided. Intersection geometry, turning movement volume and design constraints are received from a user. All possible intersection designs are generated using iterative movement placement method provided. Intersection designs are filtered through design constraints. Total conflicting volume for each intersection designs are determined using two boundary methods provided. All intersection designs are ranked based on total conflicting volume. All possible intersection geometry, total critical volume and intersections ranks are provided to user as output.