Traffic information is closely related to our daily lives. Thanks to the development of portable electronic devices, we can get traffic information rather easily. In particular, Most of traffic informations are being provided through mobile apps due to the spread of smartphones. Accordingly, to improve usability is emerged significant challenge. Therefore, this paper perform comparative evaluation for four traffic mobile apps which is currently being offered in our country and draw user needs. Then we suggest direction of traffic information apps for the future. First, We summarized research trend on information visualization and techniques which is used to traffic mobile apps with introduction traffic mobile apps. We adopted heuristic evaluation technique which is suitable for evaluating visualization and drew evaluation elements for traffic information visualization. Then, We conducted a survey based on evaluation elements so we was able to give objectivity to evaluation of information visualization which was could subjective. Based on the results we could derive results of evaluation of visualization for four traffic mobile apps. We expect that the results of this study will be contributed to develop of traffic information visualization services.