The Faculty Interview at Indian Institute of Technology, Tirupati May 31,2018

Research & Teaching Seminar

Harikishan C Perugu PhD., TE., PTP Air Resources Engineer/Scientist Air Quality Planning and Science Division California Environmental Protection Agency

Research Profile

As a Masters Researcher :
- Integrated corridor management strategy
- Methods for identification of highway hazardous locations
As a Doctoral Researcher:
- Truck travel models from limited data
- Improving vehicle emission model inputs
As a Full Time Researcher:
- Temperature impacts on mobile source gridded emissions
- Using satellite remote sensing data for urban air quality prediction
- Modifying advanced emission model from USA for India
- Pollution dosage based Eco-routing for urban transportation

Harikishan Perugu Research and Teaching seminar

Technical Achievements

Truck Models

Based on Spatial Regression

Applied by State Agency

Truck Contribution to Urban Air quality

Used by Local Planning Agency

Temperature Sensitive Gridded Traffic Emissions for Photo Chemical Models

Revamping US-EPA’s MOVES Model for Light Duty Vehicle Emission Modeling

Harikishan Perugu Research and Teaching semina r

Research Topic:

Revamping US-EPA MOVES Model for India

Harikishan Perugu Research and Teaching seminar

Background

Traffic Emissions in India

No comprehensive mobile source models available

E.g. IVE, COPERT, VAPI

Traffic emissions are majority and complex

Emission models provide emissions (CO,VOC/TOG, NOx,SOx, PM)

Emission Models need activity data : speed, driving cycles

US-EPA released MO bile V ehicle E mission S imulator (MOVES) for transportation emissions

Relatively easy to modify for different countries

Successfully used in Mexico and modifying for use in Hong Kong

http://www.thehansindia.com/posts/index/Telangana/2015-11-14/Pollution-in-Hyderabad-affects-the-cost-of-living/186475

Harikishan Perugu Research and Teaching seminar

background

Base Emission Rates
- gm/mile or gm/trip
Driving Cycles
- Repetitive driving behavior
- Laboratory /Real-world
Vehicle Specific Power
Deterioration
- Degraded emission performance
- Vehicle age
Meteorology and Fuel standards

Harikishan Perugu Research and Teaching seminar

Methodology

Local Meteorology

Modified Indian Driving Cycle

Local Vehicle age and Fuel data

Base Emission Rates
- gm/mile or gm/trip
Driving Cycles
- Repetitive driving behavior
- Laboratory /Real-world
Vehicle Specific Power
Deterioration
- Degraded emission performance
- Vehicle age
Meteorology and Fuel standards

Base Emission Rates

for New Vehicles

Local Driving Cycles

Local Emission Rates

Base Emission Rates for Old Vehicles

Harikishan Perugu Research and Teaching seminar

Data Collection and Processing

Data Collection Routes in Hyderabad

Harikishan Perugu Research and Teaching seminar

Driving Cycle Comparison

Test Driving Cycles

Real-world Driving Cycles

Harikishan Perugu Research and Teaching seminar

Emission Rate Comparison

2-wheeled motor cycles have CO emission rates of 1.18 gm/km, Bharat Stage II (1.5 gm/km )

Indian emission rates have quite apparent exponential relationship with average vehicle speeds with R2higher than 0.85

Harikishan Perugu Research and Teaching seminar

Validation

Operational Street Pollution Model was used to simulate dispersion of pollutants

Validation results showed R2values of 0.656 and 0.648 for CO and NOx, respectively

Results for “Punjagutta-Ameerpet” highway canyon were simulated for a week in July 2014

Harikishan Perugu Research and Teaching seminar

Conclusion

Future Directions

Scaled to different regions

Include heavy-duty vehicles

This study can be used as reference for application in India

The emission rates in India are only 9.54, 8.37 and 9.45 times (for CO, HC and NOx respectively) higher than the base emission rates used in MOVES database

Methodology should be extended for more light duty vehicles and more processes like start, rest loss, evaporative and hot-soak

Minor improvements in methodology to include heavy-duty vehicles

Validation of emission rates should be done with Portable Emission Measure Systems

Harikishan Perugu Research and Teaching seminar

Teaching Topic:

4-Step Travel Demand Modeling Process

Harikishan Perugu Research and Teaching seminar

Teaching Plans

Teaching Courses
- Further modifying US-EPA MOVES Model for Heavy-duty vehicle types for India
- Establishing sustainability metrics in transportation planning in India
- Developing low cost Portable Emission Measurement Systems to populate emission data
- Freight modeling with limited data

Harikishan Perugu Research and Teaching seminar

Research Plans

Research Topics
- Further modifying US-EPA MOVES Model for Heavy-duty vehicle types for India
- Establishing sustainability metrics in transportation planning in India
- Developing low cost Portable Emission Measurement Systems to populate emission data
- Freight modeling with limited data

Harikishan Perugu Research and Teaching seminar

Journal Publications

2018: Alam, MS.,McNabolaandH.Perugu. “A comparison of route-choice navigation across air pollution exposure, co2 emission and traditional travel cost factor ”, Transportation Research Part D: Transport and Environment (Impact Factor: 2.34)

2018: Perugu, H. “Light Duty Vehicle Emission Modeling for Indian Cities: Adaptation of the advanced VSP-based model in Hyderabad, India”, Transportation Research Part D: Transport and Environment (Impact Factor: 2.34)

2018: Perugu, H.,L.Ramirez“Incorporating temperature effects in California’s on-road emission gridding process for air quality model inputs”, Review completed for Environmental Pollution (Impact Factor:4.23)

2017: Perugu, H., H. Wei and Z. Yao “Developing urban heavy-duty truck fine gridded emission inventory using data-driven truck travel model”, Atmospheric Environment, 155:210-233 (Impact Factor: 3.63)

2016: Perugu, H., H. Wei and Z. Yao “Integrated data-driven modeling to estimate PM2.5 pollution from heavy-duty truck transportation activity over metropolitan area” Transportation Research Part D: Transport and Environment 46, 114-127 (Impact Factor: 2.34)

2012: Perugu, H., H. Wei and A.Rohne“Modeling Roadway Link PM2.5 Emissions with Accurate Truck Activity Estimate for Regional Transportation Conformity Analysis” Transportation Research Record, Vol. 2237:87-95 (Impact Factor: 0.76)

2009: Wei., andH.Perugu“Oversaturation inherence and traffic diversion effect at urban intersections through simulation”, Journal of Transportation Systems Engineering and Information Technology, Vol. 9(4):72-82 (Impact Factor: 0.29)

Harikishan Perugu Research and Teaching seminar

Thank You Very Much & Any Questions?

Harikishan Perugu Research and Teaching seminar