NIHTE aims to promote the advancement of highway and transportation engineering in Nigeria through professional development, advocacy, and the dissemination of technical knowledge. It seeks to improve the quality of infrastructure and transportation systems in the country.

The institution engages in various activities, including organizing conferences, workshops, and seminars to provide a platform for professionals to share knowledge and innovations. It also collaborates with government agencies, private sector organizations, and international bodies to influence policies and standards related to highway and transportation engineering.

NIHTE offers membership to professionals in the field of highway and transportation engineering. Membership categories include student, graduate, corporate, and fellow, catering to different levels of professional experience and achievement.

Over the years, NIHTE has contributed to the development of Nigeria's transportation infrastructure by providing expert advice, conducting research, and advocating for best practices in highway and transportation engineering.