ASCE Reston Branch March 2024 Meeting

When:  Mar 12, 2024 from 11:45 AM to 01:00 PM (ET)
Associated with  National Capital Section

Come join the ASCE Reston Branch for our March 2024 Meeting on Tuesday, March 12th starting at 11:45 AM

ASCE membership is not required, but an ASCE account (free) is required for registration

Our speakers will be Mr. Shankar Natarajan (Senior Technologist at Jacobs) and Joyce Zhou (Senior Transportation Engineer at Jacobs), together they will deliver their presentation on VISSIM Simulation on Artificial Intelligence Application for Dynamical Switch of Signal Timing Plans


With the special summer seasonal traffic conditions on the corridor of Delaware State Route 1 (DE-1) from Belltown to Dewey Beach, the traditional signal operations method cannot react to traffic change in time. The DelDOT AI-ITMS intended to use Artificial Intelligence (AI) to implement a dynamical switch among the signal timing plans according to the real-time traffic conditions. To support the proposed strategy, a micro-simulation model using VISSIM was developed to conduct a Before-and-After study by modeling and comparing the traffic operations under the two signal plan selection methods. The event-based script and the VAP signal controller were developed and embedded in VISSIM to select the signal timing plans.

This VISSIM model was developed in 2022 version, aiming to simulate the traffic operations under the traditional and proposed scenarios. The traditional scenario switched the signal timing plans according to the pre-determined time-of-day (TOD) schedule, regardless the actual congestion level. The proposed scenario dynamically selected the most appropriate pre-coded signal timing plans upon reaching defined thresholds associated with the real-time congestion level.

The real-time traffic volumes and occupancy rates as Measurements of Effectiveness (MOEs) collected by roadway sensors (i.e., by Data Collection Measurement in VISSIM model) are compared with the thresholds to determine signal timing plans selection. The VISSIM simulation results in both scenarios provided the evidence and justification for the strategy implementation in the future.

Mr. Shankar Natarajan

Ms. Joyce Zhou

About the Speakers:

Mr. Shankar Natarajan serves as the group lead for the Virginia Advanced Mobility System Group. He is a Senior Technologist at Jacobs and has been with the firm since 2014. He has over 18 years of experience in transportation planning, traffic analysis, traffic engineering and operations and has served as project manager, lead engineer, and subject matter expert on a variety of projects in the DMV area. 

Shankar has a Master’s Degree of Civil Engineering from University of Virginia, and is a licensed Professional Engineer in VA, DC, MD, and WV. He also holds a PTOE Certification. He and his wife Kruthika have 2 kids, aged 7 and 2.


Ms. Joyce Zhou has over 14 years of experience in various areas of traffic engineering and transportation planning, with an emphasis on traffic micro-simulation, traffic operations and safety analyses, signal study, and travel demand modeling. 

Ms. Zhou earned her Master’s Degree and Ph.D. of Civil & Infrastructure Engineering from George Mason University. She joined Jacobs as a key resource for traffic micro-simulation. Since then, she has participated in analyses in several high-profile projects on major transportation corridors, such as I-66 and I-95, as well as a variety of other transportation planning and operations projects. Other than traditional transportation engineering, Ms. Zhou is also actively involved in data analysis and modeling, ArcGIS application development, and customized tool development.

#NCS, #Meeting, #VirtualEvents, #ASCENationalCapitalSection, #TransportationEngineering, #ATCS


Yin/Yang Conference Room (second floor of building)
13861 Sunrise Valley Drive, Suite 200
Herndon, VA 20171
Dial-in Instructions:
A webinar link will be provided, prior to the event, to registrants who select to attend this meeting virtually. Only virtual attendees who attend the entire meeting, presentation and question session, will be eligible to receive 1.0 PDH.

Pricing Information

Registration Price
All Registrants $0.00
Virtual Price
All Registrants $5.00
Student (in-person) Price
All Registrants $10.00
Life Member (in-person) Price
All Registrants $15.00
Member (in-person) Price
All Registrants $20.00
Non-Member (in-person) Price
All Registrants $25.00
Event Image


Michael Magyarics
[email protected]
****ASCE stores and processes the information you provide to us in accordance with our terms and conditions and privacy policy. ASCE uses your information to manage your requests or inquiries and to support our delivery of products and services to you.

Stay up-to-date with ASCE & the Civil Engineering Community
Sign up for ASCE’s email list to receive valuable information direct to your inbox such as publications, conference invitations, continuing education opportunities, and much more. You can select the types of emails you wish to receive or unsubscribe at any time through our Email Preference Center.

Photo and Video Recording of Sessions
ASCE may take photographs and/or make audio and visual recordings of the event, and participants grant to ASCE the absolute right and permission to use any such photographs or recordings that may be taken during the event for any purpose in its sole discretion.

Photos, video or audio recording(s) of any educational session for commercial use, is strictly prohibited without prior written permission from both ASCE and the session presenter(s).