Assistant Professor

Dr. Hari Krishna Gaddam

Department of Civil Engineering


  1. Traffic Flow Modelling and Simulation
  2. Traffic Safety
  3. Application of ML and Statistical Tools in Transportation Engineering



Jawaharlal Nehru Technological University-Anantapur (Campus)


National Institute of Technology Warangal


Indian Institute of Technology, Delhi


  • June 2019 – July 2020 | Assistant Professor | V R Siddhartha Engineering College, Vijayawada, Andhra Pradesh.
  • January 2014 – November 2019 | Research Assistant | Indian Institute of Technology Delhi, New Delhi
  • August 2012 - December 2013 | Assistant Professor | Sir Padampat Singhania University, (JK group), Udaipur, Rajasthan.
  • May 2011 - May 2012 | Assistant Professor | Vellore Institute of Technology (VIT), Vellore, Tamilnadu.

Research Interest

  • Macroscopic continuum models for non-lane based heterogeneous traffic environment, First order and higher order hyperbolic continuum models, Numerical methods for Hyperbolic PDEs, Lagrangian models, Macroscopic equilibrium models and traffic flow characteristic for heterogeneous traffic flows, Car following models
  • Application of machine learning and statistical tools in transportation engineering: traffic state estimation, short term and long term traffic flow prediction, traffic sign classifications, lane detection, distress classification , road condition estimation, gap acceptance modelling and so on.
  • Pedestrian emergency evacuation studies for small and large gatherings, evacuation modelling, development of management plans, data collection methods.
  • Modelling Autonomous Vehicles (AV) in mixed traffic environment, Interaction between AV and manually driven vehicles, Car following models and continuum models for mixed vehicle environment, Transport policy measures.

Awards & Fellowships

  • 2017 - International Travel Grant -Awarded by Science and Engineering Research Board (SERB), Department of Science and Technology (DST).
  • 2017 - Fellowship for international Travel - Awarded by Ministry of Urban Development (MOUD), Government of India.


Peer-Reviewed Journal Articles:
  • A Two-Sided Lateral Gap Continuum Model and Its Numerical Analysis for Non-lane Based Heterogeneous Traffic. Hari Krishna Gaddam and K. Ramachandra Rao. Journal of Intelligent Transportation Systems (JITS) – Technology, Planning and operation, 2020.
  • KdV-Berger Solution and Local Cluster Effect of Two-Sided Lateral Gap Continuum Model. Hari Krishna Gaddam, Asha Kumari Meena and K. Ramachandra Rao. International Journal of Modern Physics – Part B. 33, 15, 1950153, 2019.
  • Speed - Density Functional Relationship for Heterogeneous Traffic Data: A Statistical and Theoretical Investigation. Hari Krishna Gaddam and K. Ramachandra Rao. Journal of Modern Transportation- 27, 1, 2019.
  • Vehicle Behavioural Attributes and Macroscopic Flow Characteristics under Non-Lane Based Heterogeneous Traffic flow. Hari Krishna Gaddam and K. Ramachandra Rao. Archives of Transport. 52, 4, 2019. doi: 10.5604/01.3001.0013.5570.
  • Empirical Investigation of Multiclass Vehicle Behaviour under Heterogeneous Traffic Flow Conditions. Hari Krishna Gaddam and K. Ramachandra Rao. European Transport, 6 (68), 1-13 (2018).
  • Comparison of Numerical Schemes for LWR Model under Heterogeneous Traffic Conditions. Hari Krishna Gaddam, Anjaneyulu Chinthireddy, and K. Ramachandra Rao. Periodica Polytechnica. Transportation Engineering, 44, 3, 132 (2016).
  • Comparative evaluation of roundabout capacities under heterogeneous traffic conditions. Arroju, Ramu, Hari Krishna Gaddam, Lakshmi Devi Vanumu, and K. Ramachandra Rao. Journal of Modern Transportation, Vol. 23, No. 4 (2015): 310-324.
Peer Reviewed Conferences
  • Vaibhav Negi, Hari Krishna Gaddam, K. Ramachandra Rao, Estimation of Capacity and Passenger Car Equivalent Values for Multilane Roundabouts – An Indian Case Study, 24th International Conference of Hong Kong Society for Transportation Studies (HKSTS), Hong Kong, Dec, 2019.
  • Hari Krishna Gaddam, K. Ramachandra Rao., “Macroscopic Continuum Models for Non-Lane Based Heterogeneous Traffic Environment- A Methodological Review”. Transportation Research Board (TRB) - 98th Annual Meeting, Washington D.C. USA, January 2019.
  • Hari Krishna Gaddam, Aditya Arya, Lakshmi Devi Vanumu, and K. Ramachandra Rao. Calibration and Validation of Pedestrian Simulation Parameters: A Case Study of Classroom Evacuation. Transportation Research Board 97th Annual Meeting Transportation Research Board (TRB). No. 18-02911. Washington, D.C, USA, January 2018.
  • Hari Krishna Gaddam, K. Ramachandra Rao., Calibration of Non-Lane based Macroscopic Continuum Model -Applying Global Search Algorithms. Mathematics Applied in Transport and Traffic Systems (MATTS-2018), TU Delft, Netherlands, October 2018.
  • Lakshmi Devi Vanumu, Aditya Arya, Hari Krishna Gaddam, and K. Ramachandra Rao. Modelling Emergency Evacuation of Classroom with Different Age Profiles. 9th Pedestrian and Evacuation Dynamics (PED-2018). Lund, Sweden, August 2018.
  • Vaibhav Negi, Hari Krishna Gaddam, K. Ramachandra Rao., Driver Gap Acceptance Characteristics of Roundabouts and Meta-Analysis of Recent Studies in India. RATE 2018, Recent Advances in Traffic Engineering, SVNIT Surat, India. August 2018.
  • Hari Krishna Gaddam, K. Ramachandra Rao., Higher-Order Continuum Model and Its Numerical Solution for Heterogeneous Traffic Flow with Non-lane discipline. 12th edition of Traffic and Granular Flow (TGF-17), George Washington University, Washington, D.C, USA, July 2017.
  • Mohit Kumar Singh, Hari Krishna Gaddam, Lakshmi Devi Vanumu, K Ramachandra Rao. Traffic Data Extraction Using MATLAB® Based Tool. 12th international conference on Transportation Planning and implementation Methodologies for Developing Countries (TPMDC-2016), Mumbai, 19-21 December, 2016.

Contact Details