Tatabad 6th Corner Junction Transformation

Overview

Tatabad 6th Corner is a multi-legged intersection characterized by the primary through movement arriving from the NH 181 on the south-western approach along Alagappa Chettiar Road continuing straight through the junction. Multiple two-way local streets connect at irregular, skewed angles, creating numerous conflict points and making the junction susceptible to accidents due to the absence of clear channelization or defined movement paths.

The lack of continuous sidewalks, pedestrian crossings, and safe refuge points further raises safety concerns, forcing pedestrians to navigate amidst fast-moving traffic. This combination of irregular geometry, unregulated movements, and missing pedestrian infrastructure highlights the need for a comprehensive redesign to enhance both traffic efficiency and user safety.

1. Site Context

Tatabad 6th Corner is a multi-legged junction where NH 181 meets several skewed two-way streets, creating numerous conflict points and unsafe vehicle interactions. The irregular geometry and lack of channelization make the junction accident-prone. Pedestrian infrastructure is minimal, with no sidewalks or safe crossings to support vulnerable users.

Multi-legged Tatabad 6th Corner Junction connecting NH 181 with local streets at skewed angles.

2. Issue Mapping

Through site analysis, certain critical points were identified for the design:

• Multi-legged junction configuration leading to uncontrolled two-way movements and haphazard vehicular interactions.
• Insufficient central island length, contributing to an overly wide junction footprint and unclear traffic guidance.
• Inadequate turning radii, limiting the ability to channelize and streamline vehicle movements effectively.
• Absence of refuge islands and formal pedestrian crossing facilities, compromising pedestrian safety.

Existing Issues

Circulation Analysis

Issue mapping and circulation analysis highlighting critical safety concerns

3. Proposed Design

The proposed design focuses on improving channelization, enhancing pedestrian safety, and creating clear movement paths for all road users.

Proposed Final Design for Tatabad 6th Corner Junction

4. Tactical Urbanism - Design Trials and Marking

Temporary interventions were implemented to test the proposed design and gather valuable feedback from road users before final implementation.