In this paper, a ROS-based autonomous driving framework designed by team ACCA from the School of Mechanical Engineering, Soongsil University, for the 2021 international college student creative car challenge held in K-city. The autonomous vehicle’s chassis used in this challenge is equipped with Velodyne 3D lidar, a Sick down-looking 2D lidar, Xsens MTi-30 AHRS, CCD camera, webcam, and PC-based controller. First, before the challenge in K-city, we evaluated the ROS-package-based SLAM such as LIO-SAM in a ring-shaped road environment on the campus of Soongsil University. After the successful SLAN and mapping process, the hdl_localization, which is a 3D lidar-based real-time 3D localization package, is used to estimate the global pose with respect to the global frame using NDT scan matching. For lane detection, traffic sign, and traffic signal recognition, the two well-known DNN models are utilized. Based on experimental results from both simulation and an actual autonomous vehicle platform, the Point Instance Network (PINet) for lane detection shows 88% of test accuracy, and the YOLO V4 for the traffic light and sign recognition offers 95% test accuracy.