The restrictions and conditions of parcel delivery services are different from other delivery services. There is WTD in the parcel delivery service. WTDs are various along the types of buildings and delivery points. To make the problem solving method simple and efficient using the WTD, the values are observed and grouped based on the type of buildings in this research. Efficient VRP heuristic design could be possible with introduction of WTD concept as well as the delivery time forecasting.

Abstract
 1. 서론
 2. 택배배송 현장의 문제점
 3. 배송지 유형에 의한 그룹화와 전달시간
  3.1 유형별 전달시간
  3.2 건물유형별 배송지점의 그룹화와 전달시간의 비율
  3.3 전달시간이 포함된 배송시간의 예측모형
 4. 결론
 참고문헌

• 박성미(동아대학교 산업경영공학과) | Sungmee Park
• 문기주(동아대학교 산업경영공학과) | Geeju Moon 교신저자