[5] National Highway 66, with the longest stretch of road (1,622 kilometres (1,008 mi)) connects Kanyakumari to Mumbai; it enters Kerala via Talapady in Kasargod and passes through Kannur, Kozhikode, Malappuram, Guruvayur, Kochi, Alappuzha, Kollam, Thiruvananthapuram before entering Tamil Nadu.
[4] Palakkad district is generally referred to as the Gateway of Kerala, due to the presence of the Palakkad Gap in the Western Ghats, through which the northern (Malabar) and southern (Travancore) parts of Kerala are connected to the rest of India via road and rail.
Among Kerala's districts, Ernakulam has the maximum length of National Highway, which accounts for 172.76 km.
But, proposed six lane highways with 45 m Right of Way in Kerala will not have the wide medians to help the trucks and large vehicles to take the U-Turn without blocking the high speed traffic, which is a common feature in other parts of India.
Keeping in view a futuristic approach, it has been decided that the land for any 4/6-lane highway road will be acquired with a right of way (RoW) of 60 m irrespective of the width of the carriageway.
The Palakkad—Thrissur—Kochi stretch of NH 544 is a part of North-South and East-West Corridor of the Indian highway system.
Due to the previous land acquisition crisis, NHAI had also stopped the feasibility study of the project under NHDP–Phase-III scheme in the stretch of NH 66 earlier, but has begun again after the strict demand of present Chief Minister.
Rehabilitation project include strengthening/reconstruction of pavement/structure, junction improvements, provision of road furniture, bus bay byes and other traffic management measures.
Sustainable and Planned Effort to Ensure Infrastructure Development (SPEEID) KERALA - Kerala government have formulated the project of constructing flyovers, bridges and roads at selected areas in the state in order to reduce the increasing traffic congestion.
[16] The Kerala State Transport Project, costing 336 million US dollars (Rs 1612 crores) - of which World Bank financing is US $255 million (Rs 1224 crores) and State's contribution is US $79.00 million(Rs 388 crores), aims to improve traffic flow and road safety on Kerala State's primary road network, and to strengthen the institutional and financial capacity of Kerala's key transport sector agencies.
The KSTP phase 2 envisages upgrading 363 km of SH and MDR, Road Safety Management and Institutional Strengthening of PWD.