Pedestrian Access Terminal
20230121725 · 2023-04-20
Inventors
- Mark Christopher Ayton (Welland, CA)
- Benjamin Fraser Powell (King City, CA)
- Dean Clinton Alberson (Ingram, TX, US)
Cpc classification
E01F15/143
FIXED CONSTRUCTIONS
E06B11/08
FIXED CONSTRUCTIONS
International classification
Abstract
A pedestrian access terminal is disclosed having a pair of spaced apart terminal blocks that allow pedestrian passage along a roadway. The bottom portions of the terminal blocks are set beneath the surface. A portal extends vertically through each terminal block. Foundation posts are vertically positioned below the surface and extend upward into each portal. Fasteners secure a traffic barrier to each terminal block and foundation post. A tensioning member extends between the foundation posts to increase resistance to lateral movement. Soil plates may be attached to the foundation posts to further resist lateral movement.
Claims
1. A pedestrian access terminal, comprising: a right side and a left side terminal block, each terminal block comprising: a top and an opposite bottom, the bottom positioned beneath a surface of a road; an access end, and an opposite non-access end; and, a traffic side and an opposite field side; a portal extending from the top to the bottom; portal orifices extending through the traffic side to intersect the portal; a pair of foundation posts extending below the surface and extending above the surface and into the portal of each terminal block; portal fasteners located in the portal orifices of the traffic side and connecting each foundation post to each terminal block; and, a tensioning member extending between the foundation posts, beneath the terminal blocks.
2. The pedestrian access terminal of claim 1, further comprising: the terminal blocks having a mass of between 3,000 and 3,500 lbs.; and, the terminal blocks being located a distance of between 3.3 and 4.9 feet (1.0 and 1.5 meters) apart.
3. The pedestrian access terminal of claim 1, further comprising: the terminal blocks having a radius of at least .5 feet (or 150 mm) at the intersection of the traffic side and the access end.
4. The pedestrian access terminal of claim 1, further comprising: the bottom of the terminal blocks being set between 4 and 12 inches below the surface.
5. The pedestrian access terminal of claim 1, further comprising: the foundation posts being embedded at least 7 feet below the surface.
6. The pedestrian access terminal of claim 1, further comprising: a chamber extending through the top of the terminal block adjacent to the portal; the chamber terminating internal to the terminal block; chamber orifices extending from the traffic side and the field side to the chamber; and, chamber fasteners located in the chamber orifices connect a traffic barrier to the terminal block.
7. The pedestrian access terminal of claim 1, further comprising: the tensioning member further comprising: a centralized turnbuckle; a threaded bar extending from each end of the turnbuckle; a connector at the end of each threaded bar; a wire rope extending from each connector; a swage button on the opposite end of each wire rope portion; and, a plate washer locking the swage button of each end of the tensioning member against the foundation post.
8. The pedestrian access terminal of claim 1, further comprising: a relief on the bottom of the terminal block; the relief intersecting the portal opening at the bottom of the terminal block; and, the tensioning member located in the relief of the terminal block and being anchored against the foundation post.
9. The pedestrian access terminal of claim 1, further comprising: a pair of lifting anchors located at the top of each terminal block; a cover plate sufficiently large to cover the portal and the chamber on the top of the terminal block; a pair of cover ports on the cover plate; and, cover fasteners located in the cover plate and connected to the lifting anchors to secure the cover plate to the top of the terminal block.
10. The pedestrian access terminal of claim 1, further comprising: an energy absorbing endcap attached to the access end of the terminal block.
11. The foundation post of claim 1, further comprising: a hollow rectangular tubular; a first pair of opposing sides, one of which being a traffic side; a second pair of opposing sides, one of which being an access side; block fastener ports extending through the first pair of opposing sides; and, the portal fasteners passing through the portal orifices and into the portal to connect a traffic barrier and foundation post to the terminal block.
12. The pedestrian access terminal of claim 11, further comprising: a tensioning portal extending through the second pair of opposing sides of each foundation post; a wire rope portion of the tensioning member extending through the tensioning portal of each foundation post; a swage button on the end of each wire rope portion; and, a plate washer anchoring the swage button at each end of the tensioning member against the foundation post to allow the tensioning member to be tensioned as between the foundation posts.
13. The pedestrian access terminal of claim 11, further comprising: plate fastener ports extending through the second pair of opposing sides of the foundation post, beneath the tensioning portal; a soil plate having fastener ports in alignment with the plate fastener ports; and, soil plate fasteners located through the fastener ports of the soil plate and the plate fastener ports of the foundation post to secure the soil plate to the foundation post.
14. A pedestrian access terminal, comprising: a right side and a left side terminal block, each terminal block comprising: a top and an opposite bottom, the bottom positioned beneath a surface of a road; an access end, and an opposite non-access end; and, a traffic side and an opposite field side; a portal extending from the top to the bottom; portal orifices extending through the traffic side to intersect the portal; a pair of foundation posts positioned below the surface and extending above the surface and into the portal of each terminal block; portal fasteners located in the portal orifices of the traffic side and connecting each foundation post to each terminal block; and, an angled soil plate attached to the foundation post, beneath the terminal block.
15. The pedestrian access terminal of claim 14, further comprising: the terminal blocks having a mass of between 3,000 and 3,500 lbs.; and, the terminal blocks being located between 3.3 and 4.9 feet (1.0 and 1.5 meters) apart.
16. The pedestrian access terminal of claim 14, further comprising: the terminal blocks having a radius of at least .5 feet (or 150 mm) at the intersection of the traffic side and the access end.
17. The pedestrian access terminal of claim 14, further comprising: the bottom of the terminal blocks being set between 4 and 12 inches below the surface.
18. The pedestrian access terminal of claim 14, further comprising: the foundation posts being embedded at least 7 feet below the surface.
19. The pedestrian access terminal of claim 14, further comprising: a chamber extending through the top of the terminal block adjacent to the portal; the chamber terminating internal to the terminal block; chamber orifices extending from the traffic side and the field side to the chamber; and, chamber fasteners located in the chamber orifices connect a traffic barrier to the terminal block.
20. The pedestrian access terminal of claim 14, further comprising: a pair of lifting anchors located at the top of each terminal block; a cover plate sufficiently large to cover the portal and the chamber on the top of the terminal block; a pair of cover ports on the cover plate; and, cover fasteners located in the cover plate and connected to the lifting anchors to secure the cover plate to the top of the terminal block.
21. The pedestrian access terminal of claim 14, further comprising: an energy absorbing endcap attached to the access end of the terminal block.
22. The foundation post of claim 14, further comprising: a hollow rectangular tubular; a first pair of opposing sides, one of which being a traffic side; a second pair of opposing sides, one of which being an access side; and, the portal fasteners passing through the portal orifices and into the portal to connect a traffic barrier and foundation post to the terminal block.
23. The pedestrian access terminal of claim 14, further comprising: plate fastener ports extending through the second pair of opposing sides of the foundation post; a soil plate having fastener ports in alignment with the plate fastener ports; and, soil plate fasteners located through the soil plate fastener ports and the foundation post plate fastener ports to secure the soil plate to the foundation post beneath the terminal block.
24. The pedestrian access terminal of claim 22, further comprising: a tensioning portal extending through the second pair of opposing sides of each foundation post; and, a tensioning member extending through the tensioning portals of the foundation posts, beneath the terminal blocks.
25. The pedestrian access terminal of claim 24, further comprising: a relief on the bottom of the terminal block; the relief intersecting the portal opening at the bottom of the terminal block; the tensioning member located in the relief of the terminal block and being anchored against the foundation post.
26. The pedestrian access terminal of claim 24, further comprising: the tensioning member further comprising: a centralized turnbuckle; a threaded bar extending from each end of the turnbuckle; a connector at the end of each threaded bar; a wire rope extending from each connector; a swage button on the opposite end of each wire rope portion; and, a plate washer locking the swage button of each end of the tensioning member against the foundation post.
Description
BRIEF DESCRIPTION OF THE FIGURES
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
[0043]
[0044]
[0045]
[0046]
[0047]
DETAILED DESCRIPTION
[0048] The following description is presented to enable any person skilled in the art to make and use the invention and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present invention. Thus, the present invention is not intended to be limited to the illustrated and described embodiments, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
[0049]
[0050] A tensioning member 80 is connected between foundation post 40 to further recess lateral movement of terminal block 10 when struck by a vehicle. Tensioning member 80 and soil plates 60 are located beneath road surface 2 (see
[0051] Terminal blocks 10 are typically made of precast concrete and have a mass of between 3,000 and 3,500 lbs. In one embodiment, terminal blocks 10 are located at a distance of between about 3.3 and 4.9 feet (or 1.0 and 1.5 meters) apart. In one embodiment, a bottom 14 (see
[0052] Field tests have proven that a mass of between 3,000 and 3,500 lbs. for terminal block 10, when used in combination with soil plate 60, tensioning member 80, foundation post 40, and related design features, will resist significant lateral movement upon impact with a vehicle weighing 5,000 lbs. travelling at up to 31 mph. Full scale crash tests have further proven that when modern passenger vehicles such as a quad-cab pickup truck with a weight of 5,000 pounds and a small car with a weight of 2425 pounds as specified by AASHTO MASH with impact the terminal block at a speed of 50 km/h [31 mph] at 25 degrees according to AASHTO MASH Test Level 1, vehicle occupants will be protected.
[0053]
[0054] Finally, though reversible, terminal block 10 has a traffic side 20 and a field side 22 when placed in position beside a roadway. As best seen in
[0055] Referring back to
[0056] In the embodiment illustrated, terminal 10 has a chamber 28. Chamber 28 extends through the top of terminal block 10 adjacent to portal 26. Chamber 28 terminates internal to terminal block 10. Chamber orifices 34 extend through traffic side 20 of terminal block 10 to intersect with chamber 28. Chamber orifices 34 may also extend through field side 22. In this configuration, terminal block 10 is reversible with regard to chamber orifices 34 and in relationship to the roadway. Chamber fasteners 38 located in chamber orifices 34 further secure terminal block 10 to barrier transition 100.
[0057] Also, in the embodiment illustrated, soil plates 60 are attached to each side of foundation post 40 beneath terminal block 10. Fastener ports 66 (see
[0058]
[0059] As seen in
[0060] As seen in
[0061] As seen in
[0062]
[0063] Block fastener ports 46 extend through the first pair of opposing sides of foundation post 40. As best seen in
[0064] A tensioning portal 50 extends through the second pair of opposing sides of each foundation post. Tensioning portal 50 receives a wire rope 84 portion of tensioning member 80 extending through tensioning portal 50 of each foundation post 40. As may best be seen in
[0065] As may be best seen in
[0066] Referring back to
[0067]
[0068] Plate fasteners 68 are positioned through plate fastener ports 48 and fastener ports 66 to secure soil plate 60 to foundation post 40. Block side 64 of soil plate 60 facilitates the advantageous three-way alignment of this embodiment by abutment with terminal bottom 14 of terminal block 10. In this manner, assembly of pedestrian access terminal 1 is much expedited.
[0069]
[0070]
[0071]
[0072] Pre-tensioning of opposing terminal blocks 10 to each other provides a greatly enhanced resistance to displacement of either terminal block 10 by a vehicle leaving the roadway. The flexibility of the disclosed tensioning member 80, which is provided by wire rope sections 84, provides enhanced assembly of pedestrian access terminal 1. The minimal size of tensioning member 80 further provides for rapid and cost-effective subterranean location of tensioning member 80.
[0073]
[0074]
[0075] With terminal block 10 aligned with foundation post 40, connection of transition 100 to terminal block 10 is easily facilitated. By replacing cover plate 70 over portal 26 and chamber 28, access to fasteners 36 and 38 is not possible and pedestrian access terminal 1 becomes tamper resistant. Having chamber 28 terminate interior to terminal block 10 provides the advantage of preventing loss of fasteners and tools through the interior of terminal block 10 during assembly.
[0076]
[0077]
[0078]
[0079] Terminal blocks 10 rest on soil plates 60 attached to foundation posts 40. Force applied in a collision to one end of tensioning member 80 would normally apply a bending moment on the opposing foundation post 40. In the configuration as designed and disclosed, foundation post 40 is fortified against bending by engagement within terminal block 10 above tensioning member 80, and by engagement with soil plate 60 below tensioning member 80.
[0080]
[0081]
[0082] The addition of energy absorbing endcap 120 is intended to work in conjunction with the crushing of the front of the passenger vehicle during impact at a velocity in excess of the IIHS requirement of 64.5 km/h [40 mph] to achieve a successful test under MASH TL-2 (passenger vehicles including 5,000 pound quad-cab pickup truck and 2,425 pound small car impacting the terminal block at 70 km/h [43.4 mph] at 25 degrees).
[0083] As used herein, the term “substantially” is intended for construction as meaning “more so than not.”
[0084] Having thus described the present invention by reference to certain of its preferred embodiments, it is noted that the embodiments disclosed are illustrative rather than limiting in nature and that a wide range of variations, modifications, changes, and substitutions are contemplated in the foregoing disclosure and, in some instances, some features of the present invention may be employed without a corresponding use of the other features. Many such variations and modifications may be considered desirable by those skilled in the art based upon a review of the foregoing description of preferred embodiments. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention.