Ramadan, Ibrahim, El Toukhy, Mahmoud, Hussien, Khaled Z., Tosti, Fabio ORCID: https://orcid.org/0000-0003-0291-9937 and Shaaban, Ibrahim ORCID: https://orcid.org/0000-0003-4051-341X (2022) Effect of road, environment, driver, and traffic characteristics on vehicle emissions in Egypt. International Journal of Civil Engineering, 20. pp. 1261-1276. ISSN 1735-0522