Chennai High Speed Circular Transportation Corridors (HSCTC) is an urban road transit in the form of elevated concentric beltways planned for the city of Chennai. The beltways are envisaged as an elevated 2-tier system with design speed of 80 km/h. The top tier is a 2-lane dedicated corridor for the Chennai BRTS system. The second tier is a 4-lane road for 4-wheelers (no buses and autos).

Beltways

Four beltways have been proposed, which cover a distance of 107.795 km. A connectivity corridor is also proposed to integrate the beltways with the ECR elevated expressway.

Beltway 1

Beltway 1 is the outermost beltway encompassing an area of 167 km2. It is formed by the following corridors.

Beltway 2

This beltway encompasses an area of 52 km2. It is formed by the following corridors.

Beltway 3

This beltway encompasses an area of 30 km2. It is formed by the following corridors.

Beltway 4

The beltway 4 is formed by the following corridors.

Integrating beltways with elevated expressways

Corridor details

These 4 beltways can be broken down into 9 corridors.

• Revised cost during tender process

Chennai Port–Maduravoyal corridor [19 km]

This 19 km corridor is implemented under Phase-VII of National Highways Development Project by NHAI. The pre-construction work has already begun.

Chennai bypass corridor [32 km]

The Chennai bypass corridor is a 32 km fully access controlled at-grade corridor. A 2-lane elevated BRTS corridor is proposed along the median of the Phase II of this expressway. The corridor is under construction.

Adyar corridor [15.845 km]

Section I Section II

North Buckingham Canal corridor [12.3 km]

Section I Section II Section III Section IV

Central Buckingham Canal corridor [2.860 km]

Inner Ring Road corridor [5.9 km]

Mambalam Canal corridor [5 km]

Connectivity corridor [5.140 km]

East Coast elevated expressway [9.7 km]

This is 9.7 km elevated expressway along the east coast of Bay of Bengal from Light House, Chennai to East Coast Road via Besant Nagar.

Interchanges

A total of 15 interchanges has been proposed along the HSCTC alignment of which 3 are already under construction by NHAI. A 3-tier interchange at Irumbuliyur is already functional.

Adyar corridor interchanges (6)

Chennai bypass corridor interchanges (2)

Chennai Port–Madhuravoyal elevated expressway interchanges (2)

North Buckingham Canal corridor interchanges (2)

Mambalam Canal corridor interchanges (1)

East Coast elevated expressway interchanges (2)

Project status

2008

January: November:

2009

28 May: 31 May: 3 June: 16 June: 12 August: 26 August:

2010

July 2010: