Jiří Ambros

6 Questions 104 Answers 0 Followers

Questions related from Jiří Ambros

Using RG for a systematic review?

I would like to use ResearchGate to find publications for a systematic review, which includes following steps: - defining search terms - defining where to search (in fulltext/keywords/abstract...

10 February 2023 5,607 6 View

"Cross-border" change of driving behaviour?

A research hypothesis: - In the Czech Republic, speeding enforcement is low as well as sanctions; therefore drivers are often speeding. - But when Czech drivers cross the border, for example to...

26 January 2018 4,769 4 View

Help with driving style assessment algorithms?

I would like to assess driving styles, related to safety. For example I know about smart-phone applications, which assess driving style based on speed, acceleration, deceleration, etc. But what...

18 February 2016 7,058 6 View

How to estimate elasticity and marginal effects with Generalized Linear Model?

I am using Generalized Linear Models (GLM) to model influence of various explanatory variables on traffic crash frequency. After modelling, it is useful to interpret influence of these variables....

10 April 2015 3,757 6 View

How to assess impact of individual variables from generalized linear model?

I have been developing various regression models for road crash frequency. I use generalized linear models (SPSS GENLIN or SAS GENMOD procedures), negative binomial (NB) distribution, log link...

09 February 2015 1,399 5 View

How to plan sample size for a crash prediction model?

Can somebody help estimating how many analysis units (number of railway level crossings - RLCs) will I need to build a crash prediction model (safety performance function)? From some past analyses...

01 January 1970 3,805 3 View