AASHTO MASH TL4 Passed-Roller Barrier (100km/h)

We are proud to announce that Safebuild Roller Barrier successfully passed the AASHTO MASH TL-4 Test. This achievement underscores our product’s superior performance in structural integrity, occupant protection, and vehicle redirection. As the sole Chinese supplier holding this globally recognized crash test certification, Safebuild sets a new benchmark for quality and reliability in the international roller barrier industry.

Safebuild is a Chinese manufacturing enterprise deeply rooted in the road safety sector, specializing in the R&D, production, and export of road safety protection systems including W-beam guardrails, roller barriers, bridge barriers, and cable barriers. The company possesses extensive experience in guardrail manufacturing and international trade.

MASH stands for Manual for Assessing Safety Hardware, published by AASHTO.The MASH is currently the most authoritative and stringent universal benchmark globally for evaluating the performance of road safety hardware.TL‑4 (Test Level 4) is the high‑level crash test standard for roadside safety hardware such as guardrails, bridge rails, median barriers, and work zone protection systems.

The purpose is to evaluate whether safety hardware can safely contain, redirect, and decelerate errant vehicles, including passenger cars (1100C), pickup trucks (2270P), and heavy trucks (10000S), while protecting vehicle occupants and avoiding secondary crashes.

This MASH TL-4 test was conducted in accordance with the following crash conditions:

The concept of a roller barrier is a structure equipped with continuous pipes covered with rubber barrels.Its general features resemble that of an upright abacus.  There are two rolling barrels, which is supported by uprights Post. Its core working principle relies on the freely rolling barrier design, which transforms the rigid impact of an out-of-control vehicle into rolling friction — absorbing collision energy and steering the vehicle back onto the correct driving lane. The goal is to save human lives and reduce secondary injuries from vehicles.It represents a conceptual leap in road safety from passive blocking to active guidance and protection.

3.Key Features

1.Absorbing Impact in case of vehicle collision,Convert impact energy into rotational energy

2.Secure Driving direction of Car,Protect the safety of drivers, passengers and facilities

3.Prevent Second Accident,Prevent the vehicle from spinning out of control

4.High Durability ‐ Semi Permanent

5.Easy to Installation and Maintenance

6.High Stability due to post and beam made of Steel

Safebuild has a professional design team that has long been engaged in the field of traffic facility design, familiar with the protection needs and industry standards of various traffic scenarios, and possesses strong independent design, R&D and customization capabilities. According to customers' specific needs, application scenarios, industry specifications and personalized requirements, the team can independently complete the design and drawing of 2D construction drawings and 3D solid models, realize independent control of the entire process from scheme conception, drawing design, parameter optimization to process connection, accurately convert customers' needs into implementable product design schemes, break the limitations of traditional standardized products, and truly achieve "one plan per customer, customized service".

At present, the types of roller barrier that our company has successfully launched and sold are as follows:  

MASH Certification: A Symbol of Reliable Safety

MASH serves as a critical yardstick for measuring whether safety facilities are "truly reliable." 

For promoters, possessing a MASH test report represents the most authoritative proof of technological advancement and safety reliability. 

For procurement parties, requiring products to pass MASH certification constitutes the most crucial safeguard for fulfilling safety responsibilities.

In the future, Safebuild will continue to deepen its roots in the field of traffic facilities, constantly optimize its team structure, improve its design and production technology levels, continuously increase investment in innovation, improve its product system, and enhance service quality. Upholding the principle of "integrity-based operation and win-win cooperation", we will work hand in hand with customers at home and abroad to contribute to the safe and orderly development of the global transportation industry.