Purpose: This study aims to explore the usability of the andragogical process model for learning to develop, deliver and evaluate training to improve communication between adapted transport drivers and people living with communication disabilities and to identify the successes and limitations of the model in this context. Design/methodology/approach: Two aspects were considered to explore the usability of the andragogical process model for learning--a comparison between the elements of the model and the designing, delivering and evaluating processes of the training; and an appreciation evaluation. Findings: The model was useful to systematically design, deliver and evaluate workplace training that was appreciated by the learners, even though most of the model's elements were modified to meet the constraints of the trainer and the organization. Assessing the needs for learning, establishing a human climate conducive to learning and choosing appropriate training methods emerged as key elements that contributed to a successful appreciation of this training. Originality/value: This study is one of the few that examines the possibility of a systematic application of the andragogical process model for learning to workplace training. Its results suggest that the model could be considered for application by non-professional trainers or external trainers from a workplace, but that organizational constraints must be considered when using it.