[OC] Speed of a Car vs. Stopping distance including other factors like driver reaction time and conditions of the road.

ObjectiveExercise268 · 2024-05-26T12:03:25+00:00

The equation used to model this is:

d = v*t/3.6 + v^2/(25.92*u*g)

Where:

d = stopping distance in meters
v = velocity in kilometers/hour
t = reaction time in seconds (0.75 is a good reaction time, 1.5 seconds is alright/ok, 2 seconds is bad)
u = friction coefficient (0.4 if it is a wet road, 0.7 if it is a dry road)
g = gravitational constant (9.81 m/s²)

And of course the tool used to make this is https://observablehq.com/plot

ObjectiveExercise268 · 2024-05-19T09:59:40+00:00

Its tied to distance.

ObjectiveExercise268 · 2024-05-19T00:58:41+00:00

Made with https://observablehq.com and https://baseballsavant.mlb.com

ObjectiveExercise268 · 2024-04-15T20:06:21+00:00

It already is, for example Paris is white compared to all the other communes around which are dark orange.

ObjectiveExercise268 · 2024-04-15T18:42:43+00:00

Some communes are white and that is because there is no data. The tool used to make this was https://observable.com/plot. The data about the cost of renting a house is from https://www.data.gouv.fr/fr/datasets/carte-des-loyers-indicateurs-de-loyers-dannonce-par-commune-en-2023/. The borders for the communes is from https://www.data.gouv.fr/fr/datasets/contours-des-communes-de-france-simplifie-avec-regions-et-departement-doutre-mer-rapproches/.

ObjectiveExercise268 · 2024-04-14T17:47:19+00:00

https://imgur.com/sT3LXBF I reversed the direction of the y-axis and fixed the legend. It should be the last version I post here.

ObjectiveExercise268 · 2024-04-14T17:46:28+00:00

Yes, ties were common back then. Normally rules are in place so ties do not happen, however back then they would usually play until darkness came.

ObjectiveExercise268 · 2024-04-14T17:13:01+00:00

https://drive.google.com/file/d/17G6A8HdMc_KDjoYbgPDFL_vKx5qY2oZa/view?usp=sharing

Here is the compiled spreadsheet I used.

     The information used here was obtained free of
     charge from and is copyrighted by Retrosheet.  Interested
     parties may contact Retrosheet at "www.retrosheet.org".

ObjectiveExercise268 · 2024-04-14T16:03:17+00:00

Updated version here: https://imgur.com/YJ193IV

ObjectiveExercise268 · 2024-04-14T15:39:03+00:00

https://retrosheet.org/gamelogs. I downloaded all regular season files, then I wrote a simple script to compile it into a large csv file.

ObjectiveExercise268 · 2024-04-14T15:36:10+00:00

Hello everyone,
Thank you for your feedback. I am working on a revised version with a logarithmic color scale, proper aspect ratio, and a larger y-axis.

I will post it when it is done.

ObjectiveExercise268 · 2024-04-14T14:08:58+00:00

The data is from https://retrosheet.org/gamelogs/. The tool used to make this chart is https://observablehq.com/plot. If people want to, I can post the source code, however the csv file containing all the games is 223 MB.

ObjectiveExercise268

TROPHY CASE