Widening method Product List and Ranking from 10 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Oct 08, 2025~Nov 04, 2025
This ranking is based on the number of page views on our site.

Widening method Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Oct 08, 2025~Nov 04, 2025
This ranking is based on the number of page views on our site.

  1. 大和産資 Shizuoka//Building materials, supplies and fixtures manufacturers
  2. 高見澤 インフラセグメント Nagano//Building materials, supplies and fixtures manufacturers
  3. 東京製綱 Tokyo//Building materials, supplies and fixtures manufacturers
  4. 総合開発 インフラ本部 コンクリート事業部 Kagawa//Building materials, supplies and fixtures manufacturers
  5. アスザック インフラエンジニアリング事業部 Nagano//Building materials, supplies and fixtures manufacturers

Widening method Product ranking

Last Updated: Aggregation Period:Oct 08, 2025~Nov 04, 2025
This ranking is based on the number of page views on our site.

  1. 25t Large Vehicle Compatible Road Widening Method "Bridge Plus Alpha" 大和産資
  2. Bicon special pressure pipe 総合開発 インフラ本部 コンクリート事業部
  3. Small Section Widening Avalanche Prevention Work "Snow Step" 東京製綱
  4. Road widening method "Road Plus" 高見澤 インフラセグメント
  5. 4 Simple Expansion Road Construction Method "Road Plus" アスザック インフラエンジニアリング事業部

Widening method Product List

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Road widening method "Road Plus"

"NETIS Registration: SK-100002-VE" Quickly widen roads where vehicles have difficulty passing each other! Road Plus allows for easy road widening!

○ A simple cantilever road widening method aimed at small-scale road widening of approximately 1.75m in narrow areas such as mountainous regions. ○ The road widening method "Road Plus" is a low-carbon concrete product that uses blast furnace slag fine powder.

  • Special Construction Method

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Road widening method "Wide Wall Method"

Simultaneously completed with the stacking of blocks! Road widening construction method!

The Wide Wall Method is a road widening system that is completed simultaneously with the stacking of blocks. It involves using trapezoidal blocks on top of large blocks to achieve road widening. Similar to the conventional construction of large stacked blocks, road widening can be accomplished simply by "stacking blocks," allowing for a maximum road widening of approximately 2.0 meters with three layers of Wide Wall blocks. It is ideal for the installation of pull-off areas, bus stops, and sidewalks in mountainous regions where full two-lane conversion is difficult! <Received the 11th National Land Technology Development Award "Regional Contribution Technology Award">

  • Stacking blocks

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Expansion method for road widening "Road Plus"

Emergency vehicles can pass by regular passenger cars! It is compatible with Type B and Type C vehicle protection barriers!

"Road Plus" is a cantilever road widening method that allows for a maximum road width increase of 1.75 meters in a short period by installing it on the shoulders of existing roads. Due to its cantilever structure, excavation of the hillside is unnecessary, and the impact on valleys such as rivers and waterways can be minimized. By using precast products, temporary construction can be reduced, leading to shortened construction periods, and it can accommodate both large vehicle specifications and medium vehicle specifications according to regional characteristics.

  • Special Construction Method
  • Road construction
  • Protective fence

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Bicon special pressure pipe

This is a high-strength pipe that achieves stable quality and strength through the Baikon manufacturing method!

We handle "Bicon Special Pressure Pipes," which excel in strength, durability, and water resistance, and are also environmentally friendly, thanks to the Bicon manufacturing method. The base-mounted shape provides excellent stability, allowing for easy installation and connection by simply aligning and inserting the pipes onto the foundation, enabling straightforward construction. Additionally, due to their high durability against carbonation, abrasion resistance, and chemical resistance, they contribute to the longevity of structures. Please feel free to contact us if you have any inquiries. 【Features】 ■ High strength and long-lasting due to the Bicon manufacturing method ■ Rational cross-sectional shape against loads acting on the pipes ■ No need for concrete foundations, allowing for shortened construction periods ■ Wide allowable soil cover range, making them versatile for both road and sewage applications, among others *For more details, please download the PDF or contact us.

  • Piping materials (concrete pipes)
  • Water and sewerage pipe fittings

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25t Large Vehicle Compatible Road Widening Method "Bridge Plus Alpha"

Achieved a weight reduction of approximately 400kg/m and an expansion of up to 100cm on one side.

"Bridge Plus Alpha" is a road widening construction method that accommodates the era of 25-ton large vehicles, achieving both widening and weight reduction simultaneously. Compared to conventional concrete widening, it realizes a weight reduction of about 400 kg/m (one example). The width increases by 100 cm (one example). Moreover, reinforcement of girders and piers is unnecessary. Additionally, the construction period can be completed within 7 days for 100 meters, making it a groundbreaking method with numerous advantages. [Features] ■ Road widening is possible up to a standard of 1,000 mm on one side. ■ Ensures high corrosion resistance due to JIS H 8641 hot-dip galvanized coating, with high-precision factory-manufactured products. ■ Secures vehicle deviation prevention performance suitable for 25-ton (240 kN) large vehicles. ■ Weight reduction to about 1/3 of reinforced concrete pavement. *For more details, please download the PDF or feel free to contact us.

  • Renovation and repair methods
  • Civil Engineering Method

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Road Plus (Extended Lane)

Simple Expansion Method for Road Widening

This is a simple cantilever road widening method aimed at small-scale road widening of approximately 1.5 meters in narrow sections of roads in mountainous areas.

  • Dam construction
  • Airport facilities
  • Civil Engineering CAD

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Road widening construction method "Road Plus"

Due to the cantilever structure, excavation of the mountain-side ground is unnecessary! A cantilever road widening method that takes into account both the environment and costs.

"Road Plus" is a construction method that allows for the widening of the roadway by up to 1.75 meters in a short period of time by installing it on the shoulders of existing roads. By using precast products, it reduces temporary construction work and shortens the construction period. Additionally, it is compatible with vehicle protective fences (Type B and C), and the installation span of the P-type for post mounting allows it to accommodate both vehicle and sidewalk protective fences. 【Features】 ■ Reduced impact on the environment on both the mountain and valley sides ■ Early traffic opening ■ Possible cost reduction ■ Compatible with vehicle protective fences ■ Road widening according to regional characteristics *For more details, please refer to the external link page or feel free to contact us.

  • Paving of sidewalks, roads, parking lots and stadiums

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Small Section Widening Avalanche Prevention Work "Snow Step"

Utilizing existing small sections, a highly effective avalanche prevention structure! It is designed to blend in with the surrounding environment throughout the four seasons.

When there is a certain amount of snow accumulation on the slope, if there are wide small steps, the snow will remain there and be compressed. This creates strong snow against shear forces, stabilizing the snow accumulation on the entire slope. However, existing small steps are often short, around 1.0 to 1.5 meters, which makes it difficult to achieve these effects sufficiently. This led to the development of "Snow Step." By widening the step width, it prevents slope avalanches with high accuracy and has a structure that blends into the surrounding environment throughout the seasons. 【Features】 ■ Economical and improves safety during construction ■ Exhibits high deterrent effects in long embankment slopes and heavy snowfall areas ■ Remains inconspicuous throughout the season ■ Reduces the formation of snow cornices and promotes melting of snow across the entire slope *For more details, please refer to the PDF materials or feel free to contact us.

  • Snow melting equipment

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APRON II

A method for widening sidewalks by extending them, allowing for an expansion of approximately 2.5 meters to be constructed in a short period of time by installing on existing roads.

■Stable Structure - By connecting the products with anchor bolts installed post-construction in the foundation concrete poured on-site, the structure integrates vertically and horizontally. - Using precast foundations allows for a completely dry construction method. ■Excellent Safety - The foundation concrete and the weight of the soil on the bottom plate provide resistance against tipping and sliding, ensuring stability. - The sidewalk area can incorporate circular anti-slip patterns to prevent slipping. ■Improved Drainage - With a 2.0% slope on the sidewalk and drainage holes and joint holes in the side walls, drainage is enhanced, making it difficult for water to accumulate behind the side walls.

  • Secondary steel products
  • Foundation construction
  • Other civil engineering works

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Simple Expansion Road Construction Method "Road Plus"

Registered with VE on NETIS! Easily and economically widen roads! Shortened construction period for early traffic opening!

The simple cantilever road widening method "Road Plus" allows for a maximum road widening of 1.75 meters in a short period by installing it on the shoulders of existing roads. It enables relatively easy and economical road widening by installing cantilever road blocks without the need for large-scale reconstruction of retaining walls. Additionally, it has been registered as a post-evaluation technology "VE" in the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system NETIS. 【Features】 ■ Reduced impact on the environment on both the mountain and valley sides ■ Early traffic opening ■ Cost reduction possible ■ Compatible with vehicle protective fences ■ Road widening tailored to regional characteristics *For more details, please refer to the PDF materials or feel free to contact us.

  • Road construction

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Simple Expansion Road Construction Method "Road Plus"

It is possible to widen the narrow mountain road. Excavation of the mountainside is not necessary! Reconstruction of the retaining wall is not required, allowing for cost reduction.

"Road Plus" is a cantilever road widening method that allows for a maximum road width increase of 1.75 meters in a short period by installing it on the shoulders of existing roads. It can accommodate both vehicle and pedestrian protective fences depending on the installation span of the P-type for post mounting. In addition to reducing temporary construction, it also shortens the construction period. [Features] ■ Reduction of environmental impact on both the mountain and valley sides ■ Early traffic opening ■ Cost reduction possible ■ Compatible with vehicle protective fences ■ Road widening tailored to local characteristics *For more details, please refer to the PDF materials or feel free to contact us.

  • Civil Engineering Method

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