Model for Change

Join us in advocating for awareness about flood traffic through engaging solutions and innovative models.

Problem Statement

When people ride cars or bikes, they naturally try to avoid water-filled patches, potholes, or damaged road sections. This leads to:

Sudden lane changes
Vehicles slowing down unexpectedly
Two-wheelers swerving without warning
Congestion near damaged road areas
Higher chances of collisions and skidding, especially during rains or at night

Over time, this behavior creates traffic bottlenecks and accident-prone zones, even on otherwise wide roads.

Who are affected?

In Chennai, floods have severely damaged more than 11,000 roads, creating thousands of potholes across the city. These potholes become hidden under water, making them difficult for drivers to notice in time. As a result, around 700–850 people are affected, either through accidents, injuries, vehicle damage, or traffic delays. Two-wheeler riders are especially vulnerable, as sudden potholes can cause skidding and loss of balance. Many accidents occur when drivers suddenly swerve or brake to avoid water-filled potholes, leading to collisions. Poor visibility during rains and heavy traffic further increase the risk. Due to these factors, several people lose their lives every year, highlighting the urgent need for better traffic management and safety solutions.

Movable Median

Our solution is a movable median system that helps reduce traffic congestion and accidents on damaged or water-logged roads. The median can move sideways and take space from the opposite side of the road, providing extra lane space where traffic is heavy. This prevents sudden lane changes by vehicles and allows smoother traffic flow. The movement of the median is controlled using a switch, making it easy to operate when needed. Once the traffic situation improves, the median can return to its original position. We have demonstrated this concept using a miniature working model of the movable median system.

Conclusion

In conclusion, flood-related road damage has become a serious challenge in urban areas like Chennai. Thousands of potholes formed after floods make roads unsafe for daily commuters. Water-filled potholes are difficult to detect and often lead to sudden braking and lane changes. This results in heavy traffic congestion and frequent accidents. Two-wheeler riders face the highest risk due to loss of balance and skidding. Pedestrians are also affected due to damaged footpaths and unsafe crossings. Poor visibility during rains further increases accident chances. Existing road infrastructure is not flexible enough to handle such dynamic situations. Temporary traffic problems require quick and adaptable solutions. The movable median system provides an effective way to manage traffic flow. It allows road space to be redistributed during emergencies. The switch-controlled operation ensures ease of use. The median can return to its original position once conditions improve. This reduces confusion and restores normal traffic patterns. Overall, the solution enhances road safety and improves traffic efficiency.