Master of Technology (MTech) from the National Institute of Technology Kurukshetra (NIT) in 2012 on the topic "Effect of fly ash on the CBR value of different soils". He is currently a PhD research scholar at the Indian Institute of Technology (IIT) Roorkee, India, and is working on the topic "Operational performance measures for intercity roads". He has published more than ten research papers in reputed international journals and conference proceedings.

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Purpose The purpose of this paper is to use the waste materials in soil stabilization and low traffic volume roads so as to minimize the cost of subgrades for road construction along with solving disposal problems of waste materials thus protecting the environment. Design/methodology/approach An extensive laboratory study has been carried out on various samples of soil alone and along with waste materials such as municipal solid waste incineration ash and marble dust by adding cement to evaluate their effect on geotechnical characteristics of clayey soils. Findings The experimental study revealed that mixture of soil:Municipal solid waste incineration ash (MSWIA):Cement and soil:Marble dust (MD):Cement can be successfully used for the construction of low traffic volume roads. The differential free swell of the clayey soil is nil on adding MSWIA: cement and MD: cement to clayey soil in optimum amounts. Research limitations/implications The research needs further experimentation on combining both MSWIA and MD together to stabilize clayey soil. Practical implications The research can be successfully used by government agencies in subgrades of low traffic roads. Social implications The utilization of waste materials in the study solved the disposal problem of both waste materials, thus protecting the environment and giving quality living standards to people. Originality/value The use of MSWIA along with cement and use of MD along with cement for evaluating geotechnical properties has not been studied in the past. The present study is focussed on the use of both these materials along with cement in soil stabilization.

Many researchers have studied the performance of two-lane intercity highways with the help of different measures. In the current study, the performance of such highways under heterogeneous traffic condition was examined by using several speed and followers related measures. The data were collected from five study sites located in different regions of India.A new methodology was proposed where followers were identified by using a Speed Difference (SD) (between two consecutive vehicles) range of -4 to +10 km/hr and gap threshold value (lower than a particular gap value) of 10 sec. By using acceptance curve method, different critical gap values were suggested for each site to identify the followers.Out of all the performance measures, the number of followers as a proportion of capacity (NFPC) and follower density (FD) were found to be the best and second best parameters.Finally, different LOS ranges were proposed based on NFPC using cluster analysis. Page 2 of 43 https://mc06.manuscriptcentral.com/cjce-pubs Canadian Journal of Civil Engineering formation where many vehicles travel under the following condition and exhibit a poor level of service (LOS). LOS is very important for evaluating the performance of a particular highway facility, which helps in the decisions related to planning, design, maintenance and rehabilitation of it. A judgement on the proper utilisation of public funds can be made by assessing LOS of a particular highway facility. As speed related measures are easy to estimate from the field, several such parameters were used by different researchers in different countries to evaluate the performance of two-lane highways namely; average travel speed (ATS), average travel speed as a percentage of free-flow speed (ATS /FFS) (Al-Kaisy and

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