Umair Durrani

8 Questions 23 Answers 0 Followers

Questions related from Umair Durrani

Are there any self-driving car trajectory data available for download?

Just like the normal vehicle trajectory data, there must be some datasets that contain vehicle trajectories for self driving cars. These datasets could potentially help in determining which...

20 September 2018 6,091 2 View

Is there a VISSIM add-in to simulate autonomous vehicles?

If yes, what car-following/ lane-changing logic does it use?

11 March 2017 1,646 5 View

Is there any example which shows the step by step of applying Genetic Algorithm to calibrate VISSIM car following parameters?

There are many papers that describe the methodology. But is there any online example that shows all the steps? Or a free program that could be downloaded to use with VISSIM?

22 February 2016 6,970 2 View

What is the time lag in GHR car following the model composed of? Only reaction time or something more?

Aghabayk et. al (2015) explained that 'T' is the driver's reaction time in GHR model (page 86). While in the article 'Traffic Dynamics. Studies in Car Following', Chandler et. al. (1958) stated...

15 December 2015 2,091 2 View

Given vehicle trajectory data, how does one determine the interaction range beyond which following vehicle is uninflluenced by lead vehicle?

Interaction range = bumper-to bumper distance between vehicles

30 October 2015 8,258 7 View

Can we do traffic microsimulations in R or Python?

Specifically, can we do car-following simulations? I have read in different articles e.g. Optimization of Wiedemann and Fritzsche car-following models for emission estimation that a car-following...

08 July 2015 7,023 10 View

How was the Wiedemann's Car following model implemented in VISSIM?

What were the modifications made in the model to implement in VISSIM? Also, are there any other English reports/ articles available which explain the 74 and 99 models other than this...

04 July 2015 8,585 21 View

Machine Learning in Transportation

I am looking for machine learning examples in the field of transportation/driver behaviour. Please share code with/without papers that you contributed to or know of in ML in transportation. Thank you!

01 January 1970 2,312 3 View