LEVEL CROSSING SYSTEMS for highest demands
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FAQ

STRAIL

General

What is STRAIL?

STRAIL is the registered trademark of KRAIBURG STRAIL GmbH & Co. KG, 84529 Tittmoning, for level crossing systems.
The trademark is used for a system which consists of fully vulcanized rubber panels. Due to its modular design and a variety of products, it is possible to find the perfect solution for any level crossing. The STRAIL product range of level crossing panels includes an entire array of solutions for all types of level crossings.


What is STRAIL made of (and how does it differ from other rubber panels)?

All STRAIL® level crossing panels are manufactured using recycled rubber and virgin rubber.
A special feature is the fact that the entire panel is fully vulcanized using a especially production process. On the basis of this complex production process - and compared to other products - it is possible to achieve superior properties and a much longer service life.


Maximum loads for STRAIL, innoSTRAIL, pedeSTRAIL

Depending on road and rail load, as well as individual local conditions, a perfectly suited product can be certainly found within the STRAIL® portfolio. It is generally recommended to consult the responsible STRAIL employee, who will gladly assist you in finding the right product for your respective area of application.


Which rails, sleeper types and fastenings can be used with STRAIL?

Basically, all STRAIL products are suitable for all types of track superstructures. Since the rubber panels rest on the sleepers, they adapt to the geometry of the sleepers.  Thus, a dimensionally accurate solution exists for each rail/sleeper/fastening combination.


Basic sizes

Inner panel */**

Outer panel **

STRAIL

600 x 1435 mm
alternatively:
1200 x 1435 mm

1200 x 713 mm (respectively
591 mm)

innoSTRAIL

900 x 1435 mm

900 x 713 mm (respectively
591 mm)

pedeSTRAIL

900 x 1435 mm

900 x 713 mm (respectively
591 mm)

veloSTRAIL

600 x 1435 mm
alternatively:
1200 x 1435 mm

like STRAIL respectively innoSTRAIL

pontiSTRAIL     

like STRAIL, veloSTRAIL or innoSTRAIL    

1200 x 900 mm

 

*    Also available for narrow and broad gauge,
      e.g. 1000 mm or 1524 mm
**  Height dependent on rail type
      and fastening;


Weight

Inner panel*

Outer panel*

STRAIL

161 kg

124 kg

innoSTRAIL

253 kg

80 kg

pedeSTRAIL

154 kg

76 kg

veloSTRAIL

140 kg

like STRAIL
or innoSTRAIL

pontiSTRAIL    

like STRAIL
respectively veloSTRAIL
or innoSTRAIL       

130 kg

*  Data for S54 rail, B70W concrete sleeper,
    600 mm long panel


Installation times

STRAIL inner + outer panel
without T-curbstone per linear meter

approx. 10 min

STRAIL inner + outer panel incl. T-curbstone per linear meter

approx. 50 min

pontiSTRAIL inner + outer panel without T-curbstone per linear meter

approx. 10 min

pontiSTRAIL incl. T-curbstone per linear meter

approx. 50 min

innoSTRAIL inner + outer panel without T-curbstone

approx. 15 min

innoSTRAIL inner + outer panel incl. T-curbstone

approx. 50 min

veloSTRAIL inner panel per linear meter

approx. 5 min

pontiSTRAIL + STRAIL inner panel

approx. 50 min


Road connection

A range of options exists on how to connect to the road, depending on the respective load of the road. In addition to the simple option of surfacing with asphalt, a more permanent version using concrete curbstones is increasingly being used. In any case, the installation instructions must be strictly observed!


Skid resistance & SRT value

The skid resistance of the STRAIL® surface has been continuously improved over the last years. The patented corundum surface and the rhombus design with pyramid point guarantee highest possible skid resistance in all conditions.
Skid resistance is determined by the "SRT value". 55 SRT units; meet the approval requirements of the Eisenbahn-Bundesamt (EBA = Federal Railway Authority)


Durability

Our complex, full vulcanization of the panels results in a significantly higher durability of our panels, compared to other products using a polyurethane binder. Lifetimes between 10 and 15 years are the rule, depending on the traffic load of the level crossing. In the meantime, installation lifetimes of 25 years are no longer uncommon.


Maintenance cycles

By design, the STRAIL® system requires no regular maintenance. When properly installed according to installation instructions, the system is virtually maintenance-free.


Diagonal traffic crossing a level crossing

On principle, our STRAIL system is suitable for all crossing angles. In case of angles starting at 65° or 115° additional movement stoppers are installed, which prevent the panels from sliding and creating cracks.


Is it possible to install level crossings within the area of switches?

Special panels, which are dimensionally accurate, are manufactured in coordination with our design department for the full-surface covering in the area of the center and end parts of switches.

Full-surface covering is not possible within the areas of the frog and the points. A special construction is necessary for rail distances below 400 mm; rail distances should not be less than 150 mm.


Is it possible to install level crossings within the area of radii?

On principle, full-surface covering of radii is unproblematic.  Very tight radii are covered with a specific number of special radii panels.


What are the tie rods needed for?

The patented tie rod system has been in use since 1997. This system ensures that all panels are locked into a compact package, which greatly improves position stability. Using this system, cracks created by moving panels (especially in case of diagonal traffic) or shrinkage of the panels have become a thing of the past.


When are end brackets required?

End brackets are positioned at each last panel and bolted to the sleeper. In the past, these additional movement stoppers were usually used in cases of very high traffic load in combination with a small crossing angle. Today, end restraints are generally used for such applications.


When is the end restraint used?

The end restraint is a safeguard for high-load crossings with diagonal traffic and has replaced the end brackets used previously.


What are sleeper hooks?

Sleeper hooks are used in combination with end restraints (see above).
As an alternative to screwing the end bracket to the sleeper, the end bracket is fastened to the sleeper hook, which in turn rests against the (concrete) sleeper.


Which railroad approvals exist for STRAIL®?

All products belonging to the STRAIL family have been approved and installed in nearly all major railroad countries.
We are happy to answer any specific questions you may have concerning this subject.

 


What about certification in accordance with DIN ISO 9001?

KRAIBURG STRAIL GmbH & Co. KG, D-84529 Tittmoning has been certified in accordance with DIN ISO 9001 since 1994.
In addition, audits as well as evaluations by suppliers are carried out on a regular basis at our company. For several years now STRAIL has been a proud Q1 supplier of the Deutsche Bahn AG, as well as an A1 supplier of the SNCF (French National Railway Company).

 

 

 


How is the interlocking connection between the panels ensured?

By using our patented tie rod system, which minimizes shrinkage and largely prevents a shifting of the panels. The integrated tongue and groove connection provides an interlocking surface.  In any case, the installation instructions must be observed.


Machinery required for installation

Basically no machines are required to install STRAIL® level crossing panels. Thanks to their low weight, the panels can be installed manually.  STRAIL offers an optional mounting lever for faster assembly of the inner panels. If the road connection is to be made with curbstones, hoisting machines will be required for the concrete parts.

 


How wide is the rail groove?

The width of the rail groove can vary between 45 mm and 70 mm. The deciding factors in these circumstances are the respective provisions of the approving authority.

 


Can STRAIL panels break and thereby render the level crossing impassable?

Due to the flexible rubber material and the fact that its geometry is adapted to the sleeper the level crossing always stays passable! A panel actually breaking is therefore nearly impossible. In case of damage, e.g. to the surface, it is not necessary to close the level crossing to traffic.


What is an „Intervia“ area?

The area between two tracks (so in case of multi-track level crossings) is called Intervia area. It is not compulsory that the area between the outer panels of the two tracks be paved. A uniform full-surface covering using STRAIL® would also be a possible solution here. After on-site measurement, the required STRAIL panels are manufactured to precisely fit the area. The center distance between two tracks should not exceed 4 m.


Compatibility

Basically, all products within the STRAIL product range can be combined with one another. There are a few restrictions; especially in case of a new product generation.


Train speeds

STRAIL has been approved for tracks up to 160 km/h. For veloSTRAIL the top speed for rolling stock is 120 km/h.


pontiSTRAIL

Where does the name pontiSTRAIL come from?


Ponti
comes from Latin and means „bridge“.

Since the aluminum bearers only rest on the rail base and the curbstone they thereby form a bridge over the ballast bed.


Are there any pontiSTRAIL inner panels?


pontiSTRAIL
is purely an outer panel system.

When looking for inner panels the right product is usually STRAIL (600 or 1200 version).


Which areas are suitable for pontiSTRAIL?

pontiSTRAIL is particularly suitable for level crossings with a high percentage of heavy vehicle traffic on the street. Likewise, pontiSTRAIL is advantageous for level crossings with cant, since the bearers do not rest on the sleeper.


What can pontiSTRAIL do better than other „bridge systems“?
  • Long-lasting high SRT value
  • Bearers and panels can be installed manually
  • Due to the wide bearer at the rail base and curbstone the system doesn‘t „wobble“
  • Aluminum is relatively flexible
  • Rubber bearers with little deformation; in addition they are fixed to the aluminum bearer
  • Horizontal track position changes, e.g. after track maintenance are tolerated due to the adjusting wedge (up to +/- 6 mm)

How does aluminum react under field conditions?

The system was subjected to various tests (e.g. 6-week-long salt spray test).
Aluminum is highly permanently resistant to normal weather conditions such as water, temperatures etc.


Which loads are the aluminum bearers able to withstand?

The Technische Universität München (Technical University Munich) has carried out many static and dynamic tests. The following results, which are based on the production version of the bearer, are available:

Target: 2 million load changes at a load of 35 kN

2 bearers were subjected to 2.16 million and 2.18 million load changes respectively, while a third bearer was to be stressed until it failed. The test was finally terminated at 6.34 million cycles, since no changes could be observed.


Afterwards, the three prestressed bearers, as well as a new bearer were subjected to a static test. The bearer, which was prestressed with 6.34 million cycles, broke at a static load of 197 kN. All other bearers exceeded the testing machine’s maximum power of 200 kN.

 


innoSTRAIL

Properties of innoSTRAIL

Compared to STRAIL, innoSTRAIL can be laid even faster and therefore more economically, due to its panel size of 90 cm and based on the fact that it does not use filler blocks.  Textile reinforcements in the area of the tongue and groove connection provide a very high degree of durability. 


Which areas are suitable for innoSTRAIL?

innoSTRAIL is always a good choice when truck traffic is low and at moderate speeds. Typical applications are residential areas or secondary roads.


Does one need to adhere to an exact sleeper spacing for innoSTRAIL?

innoSTRAIL panels are 90 cm long and can, in principle, be laid regardless of the respective sleeper spacing.


veloSTRAIL

Characteristics of veloSTRAIL

Designed for level crossings of all types, veloSTRAIL has shown to be extremely handicapped accessible and cyclist-friendly, particularly in urban areas.


Lifetime of the veloSTRAIL wear parts:

When correctly installed at least one million axle crossings or two years, depending on which event occurs first. The formation of a rail groove in the wear part is normal and does not affect functionality. Owing to the principles involved, the rail groove, however, cannot become larger than 20 x 20 mm. It therefore already complies with the planned EU Directive concerning “at-grade” level crossings.

 


Can a train derail, if the rail groove is closed by veloSTRAIL?

The static force required to depress the veloSTRAIL wear part is well below 1 kN. Normal rolling stock exert a much higher force.


How are the veloSTRAIL wear parts secured against shifting and extraction?

Besides using rubber materials especially developed for this purpose, a number of constructional measures have been taken.

  • Precisely fitting dovetail joint connecting inner panel and wear part
  • Safeguard to prevent longitudinal movement integrated in each panel and wear part
  • Barbs grab under the rail head

What happens when the veloSTRAIL wear parts are worn and need to be replaced?

It is only necessary to remove the wear parts which need to be exchanged (see assembly instructions) and replace them with new wear parts. The inner panels remain in the track. Removal and installation are quick and under certain circumstances can even be done in the period between trains.


pedeSTRAIL

Where does the name pedeSTRAIL come from?

"pede" is derived from the Latin word "pedes" (pedestrian) and thus gives an indication of the main field of application, namely primarily pedestrian crossings, but also crossings for cyclists.


What kind of level crossings is pedeSTRAIL used for?

As the name suggests (see above), the main applications are to be found in the area of crossings for pedestrians and cyclists. However, numerous possibilities also exist to use pedeSTRAIL at railroad stations, stops, depots or industrial plants.


Properties of pedeSTRAIL

pedeSTRAIL is the right product when looking for a solution for the full-surface covering of pedestrian and/or cyclist crossings. Recesses on the underside of the panels reduce their weight, making handling them so much easier.

In principle, pedeSTRAIL can be laid regardless of the respective sleeper spacing.


Can a road vehicle drive over a pedeSTRAIL level crossing?

Generally, pedeSTRAIL is only suitable for low weights (pedestrians, cyclists, etc.) Emergency crossings (e.g. by rescue vehicles) are possible at low speed.


Can pedeSTRAIL also be installed directly next to STRAIL panels?

A continuous covering is very often wanted at level crossings, where crossings for pedestrians or cyclists run very closely along a street.

All products belonging to the STRAIL family have the same connection features (tongue and groove; connection tie rods) and are therefore fully compatible.


STRAIL road marking

What colours does STRAIL road marking come in?

The STRAIL road marking-S spray can is currently available in pure white and rape yellow. The colour paste for the STRAIL road marking is available in pure white, yellow and red (additional colours are available on request).


Do you offer any STRAIL road marking accessories?

Yes, we also have an applicator, road marking templates in various line widths, a hand roller and STRAIL chalk line.


Do all three methods of application offer the same level of colour fastness?

Yes, colour fastness is not affected by the method of color application!


Do you offer STRAIL panels which are already fully painted?

Yes, but only panels for pedestrians and cyclists (-> pedeSTRAIL system).


Does STRAIL road marking also adhere to concrete or asphalt?

Yes, STRAIL road marking also adheres to surfaces like concrete and asphalt. However, do not use STRAIL primer on these surfaces! STRAIL assumes no warranty when using STRAIL color marking on concrete or asphalt!


Which areas can be coloured using the STRAIL road marking-S spray can?

One spray can is enough for approx. 4 m, based on a line width of approx. 10 cm. Generally, the following holds true:  1 liter per sqm.


Do painted areas have the same skid resistance as non-painted areas?

Yes, the necessary resistance values can be achieved by sprinkling additives onto the freshly applied paint. Glass pearls or coloured quartz sand can be used depending on the area of application.


How long does it take until the painted area can be stepped on?

Surface skinning sets in after approx. 2 hours. Trafficability is achieved after approx. 6 hours.
The area is thoroughly dry after approx. 12 hours (depending on surface and ambient temperature).


How can the road marking be applied?

By using an airless sprayer, a hand roller or the STRAIL road marking-S spray can.


Which solution is suitable for which use?

An airless sprayer is recommended for bigger areas, whereas a hand roller or STRAIL road marking-S spray can may be used for smaller level crossings or repair work.


STRAILastic

General

What are the benefits of STRAILastic products?
  • Reduction of noise emissions

  • Vulcanised rubber with high mechanical stability

  • Our products are made from recycled rubber and have a cover layer of new rubber

  • Smooth, easy to clean surface 

  • UV and ozone resistant

  • Insulates stray currents

  • The profiles are clamped instead of bonded > quick assembly

STRAILastic_R

What does the ‘R’ in STRAILastic_R stand for?
Here, ‘R’ stands for grass track (‘Rasengleis’ in German).
Additionally to its natural appearance and the visual enhancement of your track, grass tracks also improve the micro climate in inner-city areas.

Why are there different types of STRAILastic_R?
Depending on the rail type, the structure and the fastening, our STRAILastic_R systems can be individually adjusted to your requirements. The towns refer to the respective first installations.

Can the fastenings at the grass tracks be checked?

The profiles protect and cover the fastenings. Since no glue is used upon installation, the grass track profiles can be removed for checks and later reinstalled very easily. Further details can be found in the installation or disassembly instructions.


STRAILastic_A

What does the ‘A’ in STRAILastic_A stand for?
Here, the ‘A’ stands for ‘absorber‘.
Absorbers are rail web dampers for noise reduction.

Why are there 2 different types of STRAILastic_A?

 

Depending on the rail type and your requests, there is either a metal-free system or a system with steel insert.

Can rails be repaired or replaced when STRAILastic_A is installed?

STRAILastic_A absorbers can withstand temporarily high temperatures. That can be important for built-up welding.

For repairing rail breakage as well as for comprehensive built-up welding, the absorbers have to be removed.

If you have questions, please contact your competent STRAILastic employee.


STRAILastic_IP

What is STRAILastic_IP?


STRAILastic_IP infill panels
are a pilot project in cooperation witht Deutsche Bahn AG (German Federal Railways) for noise reduction.


What are the benefits of STRAILastic_IP?


STRAILastic_IP
can be mounted to the already existing infrastructure such as standard bridge railings.That allows you to do without an extensive planning approval procedure.

Unlike conventional noise protection walls, STRAILastic_IP does not require an additional foundation.

Due to the use of rubber, there is no "loose vibrating" that causes noise emissions such as rattling (as is the case with noise protection walls made of aluminium). Moreover, that side of STRAILastic_IP which does not face the railway can be used as advertising/designing space.


STRAILastic_TOR

What does ‘TOR’ in STRAILastic_TOR stand for?
TOR stands for Top of Rail since the chamber filler reaches up to the top of the rail.  

Which additional benefits/advantages do our SOK systems offer?


  • Cutting down construction time > the profiles can be assembled easily, quickly and without bonding

  • Reducing current maintenance costs since there is no joint sealing.
     
  • The system for sleeper structure is independent of sleeper spacing

  • Pre-assembly possible

How long is the service life of STRAILastic_TOR?

STRAILastic_TOR is extremely durable since it is resistant to all chemicals common in road traffic.  


STRAILastic_GRS

What does ‘GRS‘ in STRAILastic_GRS stand for?
Here, GRS stands for track section base plate and is an accessory for track section structures.

What is STRAILastic_GRS used for?

Track section base plates are used for position stability and as an aid for assembling tracks. STRAILastic_GRS helps to firmly set and adjust the track section into the right position and height so that the supporting concrete slab can be cast underneath the rail.  Also, the filling concrete can be poured in between the rails without interruptions.  

By combining STRAILastic_GRS with STRAILastic_TOR you can cut down construction time even more.  

STRAILway

General

Which raw materials are used for producing the plastic sleepers?

A fibre-reinforced polyolefin recyclate compound (PE-HD + glas fibres)

In which lengths and dimensions can STRAILway plastic sleepers be produced?


  • normal track and turnout sleepers: h/w= 16/26 cm; l= 2.60 m
    (turnout sleepers can be produced in any length)

  • bridge sleepers h/w= 26/24 cm; l= 2.60 m
    (can be produced in any length as well)

How are STRAILway plastic sleepers produced?

We use an extrusion process for production.

What is the service life of a plastic sleeper?

Its service life is 50 years.

What does a STRAILway plastic sleeper weigh?


  • normal track and turnout sleeper 16/26/260 cm = 110 kg

  • bridge sleeper 26/24/260 cm = 165 kg

How can plastic sleepers be processed?

They can be processed similarly to wood (milling, jigsaw, chain saw, drilling). However, you should use tools for processing plastics.

For which loads and for which speed has the STRAILway plastic sleeper been approved?

They have been approved for a maximum wheelset load of 225 kN and a maximum speed of 160 km/h.

Always be up-to-date!
Here you can download our current brochures.

 

STRAIL & STRAILastic on tour Here you can find all dates of fairs and further information!

Here you can find one of our competent partners near you.

STRAIL | STRAILastic | STRAILway
KRAIBURG STRAIL GmbH & Co. KG
Goellstraße 8 | 84529 Tittmoning
Germany | Phone +49 8683 701-0
Fax +49 8683 701-126