지침 개정에 따른 경과 조치

본 지침은 발간 시부터 적용하며, 이미 시행 중인 설계용역이나 건설공사에 대하여는

발주기관의 장이 필요하다고 인정하는 경우에 적용할 수 있습니다.

◖ i ◗

목 차

제1장 총 칙

1.1 지침 목적 ······················································································································2

1.2 지침 적용범위 ··············································································································2

1.3 회전교차로 정의 및 운영원리 ····················································································3

1.3.1 회전교차로 정의 ································································································3

1.3.2 회전교차로 운영원리 ························································································3

1.4 회전교차로 구성요소 및 용어정의 ············································································5

제2장 회전교차로 특징과 유형

2.1 회전교차로 특징 ···········································································································8

2.1.1 지체 감소 ···········································································································8

2.1.2 안전성 향상 ·······································································································9

2.1.3 환경적 측면 ·····································································································12

2.2 회전교차로 유형 ········································································································13

2.2.1 기본유형 ···········································································································13

2.2.2 특수유형 ···········································································································15

제3장 회전교차로 계획 및 설치기준

3.1 회전교차로 설치 여건 ·······························································································22

3.1.1 설치 목적 ·········································································································22

3.1.2 기하구조 및 통행 여건 ··················································································22

3.1.3 회전교차로 설치 여건에 따른 유형 결정 순서 ··········································23

3.2 회전교차로 설치 기준 ·······························································································28

3.3 단계별 계획 절차 ······································································································31

◖ ii ◗

제4장 회전교차로 설계기준

4.1 설계절차 ······················································································································34

4.2 설계 기본원리 및 조건 ·····························································································34

4.2.1 기본원리 ···········································································································36

4.2.2 설계기준자동차 ·······························································································40

4.2.3 자동차의 회전과 설계속도 ············································································41

4.2.4 시거 ··················································································································46

4.2.5 기타 회전교차로 설계조건 ············································································48

4.3 기하구조 설계기준 ·····································································································51

4.3.1 경사 및 횡단면 ·······························································································51

4.3.2 내접원 지름 ·····································································································52

4.3.3 진입부 및 진출부 ···························································································54

4.3.4 회전차로 ···········································································································58

4.3.5 교통섬 ··············································································································60

4.3.6 우회전 전용차로 ·····························································································65

4.3.7 나선형 회전교차로 차로분리시설 ·································································66

4.4 안전 및 부대시설 기준 ·····························································································68

4.4.1 도로안내표지 ···································································································68

4.4.2 교통안전표지 및 노면표시 ············································································71

4.4.3 조명 ··················································································································73

4.4.4 보행자 및 자전거를 위한 시설 ·····································································74

4.4.5 주차 및 버스정류장 ························································································77

4.4.6 배수시설 ···········································································································79

부 록

• 나선형 회전교차로 설계방법 ····························································································84

• 회전교차로 설계 예시도 ···································································································85

• 국외 회전교차로 설치 사례 ···························································································107

◖ iii ◗

표 목차

<표 1.1> 회전교차로와 로터리의 비교 ················································································4

<표 2.1> 나선형 회전교차로의 유형 구분 및 유형별 특성 ············································16

<표 2.2> 유형별 나선형 회전교차로의 형태 ·····································································17

<표 3.1> 회전교차로 유형별 설치기준 교통량 ·································································28

<표 4.1> 국내 설계기준자동차 제원 ··················································································40

<표 4.2> 회전교차로 정지시거 ···························································································46

<표 4.3> 설계속도별 최소 교차로시거 ··············································································48

<표 4.4> 초소형 회전교차로 내접원 지름 ········································································53

<표 4.5> 소형 회전교차로 내접원 지름 ············································································53

<표 4.6> 1차로형 회전교차로 내접원 지름 ······································································53

<표 4.7> 2차로형 회전교차로 내접원 지름 ······································································54

<표 4.8> 나선형 회전교차로 내접원 지름 ········································································54

<표 4.9> 유형 및 설계기준자동차별 진입로 폭 및 진입 곡선반지름 ···························56

<표 4.10> 초소형 회전교차로 회전부 제원 ······································································59

<표 4.11> 소형 회전교차로 회전부 제원 ··········································································59

<표 4.12> 1차로형 회전교차로 회전부 제원 ····································································59

<표 4.13> 2차로형 회전교차로 회전부 제원 ····································································60

<표 4.14> 나선형 회전교차로 회전부 제원 ······································································60

◖ iv ◗

그림 목차

<그림 1.1> 회전교차로 구성요소 ··························································································5

<그림 2.1> 신호교차로 대비 회전교차로 지체시간 감소효과 ···········································9

<그림 2.2> 자동차 간 상충 지점수 비교 ··········································································10

<그림 2.3> 자동차와 보행자 간 상충 지점수 비교 ·························································10

<그림 2.4> 주거지역 진입로 설치 예 ················································································11

<그림 2.5> 초소형 회전교차로 ···························································································14

<그림 2.6> 소형 회전교차로 ·······························································································14

<그림 2.7> 1차로형 회전교차로 ·························································································14

<그림 2.8> 차로변경억제형 2차로형 회전교차로 ·····························································15

<그림 2.9> 나선형 회전교차로 ···························································································15

<그림 2.10> 회전교차로 상충 지점수 비교 ······································································16

<그림 2.11> 직결형 및 쌍구형 회전교차로 ······································································18

<그림 2.12> 입체형 회전교차로 ·························································································19

<그림 2.13> 물방울(T-Drop)형 회전교차로 ····································································19

<그림 3.1> 회전교차로 설치 시 유형 결정 순서 ·····························································24

<그림 3.2> 교통소통 측면의 회전교차로 유형별 설치기준 교통량 ·······························29

<그림 4.1> 회전교차로 접근로 수 ······················································································36

<그림 4.2> 진입로 기하구조를 통한 자동차 주행경로 곡선화 ······································37

<그림 4.3> 회전교차로 통과교통류 속도 변화 ·································································37

<그림 4.4> 회전교차로 중심 위치 ······················································································38

<그림 4.5> 회전차로 폭 변화 ·····························································································38

<그림 4.6> 진입부 자동차 시거 확보 필요 구간 ·····························································39

<그림 4.7> 접근로 연장축 방향 ·························································································39

<그림 4.8> 접근로 중심선 방향 ·························································································40

<그림 4.9> 직진자동차의 회전경로(1차로형 회전교차로) ···············································41

<그림 4.10> 직진자동차의 회전경로(2차로형 회전교차로) ·············································42

<그림 4.11> 좌회전자동차의 회전경로(1차로형 회전교차로) ·········································42

<그림 4.12> 우회전자동차의 회전경로(1차로형 회전교차로) ·········································42

<그림 4.13> 속도와 회전반지름 관계 ················································································43

<그림 4.14> 회전반지름 종류 ·····························································································44

◖ v ◗

<그림 4.15> 완만한 감속을 유도하는 접근부 설계 ·························································45

<그림 4.16> 완만한 감속 유도를 위한 중앙교통섬 처리 예 ··········································46

<그림 4.17> 진입부 교차로시거 ·························································································47

<그림 4.18> 고속도로 톨게이트 진출입로 설치 예 ·························································49

<그림 4.19> 간선도로 하부의 일반도로 설치 예 ·····························································49

<그림 4.20> 회전차로 횡단면 설계(화물차 턱이 있는 경우) ·········································52

<그림 4.21> 회전차로 횡단면 설계(화물차 턱이 없는 경우) ·········································52

<그림 4.22> 진입부와 진출부 설계 ···················································································55

<그림 4.23> 진입각 측정방법 ·····························································································55

<그림 4.24> 2차로형 회전교차로에서 차로변경 상충 ·····················································57

<그림 4.25> 2차로형 회전교차로에서 자연스러운 주행을 유도하기 위한 설계 예 ····57

<그림 4.26> 2차로형 회전교차로에서 통행로 상충 여부 평가방법 ······························58

<그림 4.27> 소형 회전교차로의 중앙교통섬 처리 예 ·····················································61

<그림 4.28> 초소형·소형 회전교차로의 중앙교통섬 횡단면 설계 ·································61

<그림 4.29> 소형·1차로형·2차로형 회전교차로의 중앙교통섬 횡단면 설계 ···············62

<그림 4.30> 중앙교통섬 조경 ·····························································································63

<그림 4.31> 나선형 회전교차로 모식도 ············································································63

<그림 4.32> 분리교통섬 설계제원 ·····················································································64

<그림 4.33> 우회전 전용차로 설계방법 ············································································65

<그림 4.34> 나선형 회전교차로 차로분리시설 ·································································66

<그림 4.35> 나선형 회전교차로 차로분리시설 설치 사례 ··············································67

<그림 4.36> 도로안내표지 설치 예 ···················································································69

<그림 4.37> 나선형 회전교차로 진입부 도로안내표지판 ················································70

<그림 4.38> 교통안전표지 및 노면표시 설치 예 ·····························································71

<그림 4.39> 회전교차로 진입부 노면표시 ········································································72

<그림 4.40> 회전교차로 조명시설 설치위치 ····································································73

<그림 4.41> 회전교차로 유형별 일반 횡단보도 설치 예 ···············································75

<그림 4.42> 회전교차로 2단 횡단보도 설치 예 ······························································75

<그림 4.43> 입체 횡단보도 설치 예 ·················································································76

<그림 4.44> 자전거 전용도로 설치 예 ··············································································77

<그림 4.45> 회전교차로 접근로 상의 주차 시설 설치 예 ·············································78

<그림 4.46> 회전교차로 버스정류장 설치 유형 예 ·························································79

<그림 4.47> 배수시설 설치 예 ···························································································80