PURPOSES : This study was conducted to develop expressway safety treatments based on the analysis results of older driver behaviors through literature review, surveys, and driving simulator experiments.
METHODS: In this study, three analyses were conducted: surveys of 700 older drivers to find the risk segments they recognized, driving simulator experiments with older and younger drivers to investigate driver behaviors, and expert surveys to find the priority of expressway safety treatments for older drivers.
RESULTS : Through survey results it was found that merging areas and tunnels were identified as the most dangerous areas, and more dangerous older driver behaviors were observed on those expressway segments in the driving simulator experiments. In addition, the priorities of safety treatments for each segment of expressways were decided based on expert surveys.
CONCLUSIONS: It was concluded that choice and concentration strategies of expressway safety treatments for older drivers should be applied as perceptions regarding dangerous spots and older driver behaviors, including geometric designs, safety facilities, regulation, and institutes to improve expressway safety.

ABSTRACT
 1. 서론
  1.1. 연구의 배경 및 목적
  1.2. 연구의 범위
  1.3. 연구수행절차
 2. 기존연구고찰
  2.1. 고령자를 고려한 고속도로 개선 관련 연구
  2.2. 고령운전자 설문조사 관련 연구
  2.3. 모의주행실험 관련 연구
 3. 조사 및 실험 계획 수립
  3.1. 고령자 대상 설문조사
  3.2. 모의주행실험
  3.3. 전문가 대상 설문조사
 4. 분석결과
  4.1. 고령자 대상 설문조사
  4.2. 모의주행실험
  4.3. 고령자를 고려한 개선대책 도출
  4.4. 전문가 대상 설문조사
 5. 결론 및 향후연구과제
 REFERENCES

• 전진우(서울시립대학교) | JEON Jinwoo
• 이동민(서울시립대학교 교통공학과) | LEE Dongmin 교신저자
• 김영범(서울연구원 교통시스템연구실) | KIM Youngbeom
• 이기영(한국도로공사 도로교통연구원) | LEE Ki-Young