diff --git a/app/eva_common.py b/app/eva_common.py
index 64d668c..5fb8c62 100644
--- a/app/eva_common.py
+++ b/app/eva_common.py
@@ -450,7 +450,7 @@ def gen_dir_light_info_dict(light_infos):
 def check_outside_left(lane_turn_info):
     seen_s = False          # 是否已出现直行车道
     for func in lane_turn_info:
-        if func == '-':
+        if func == '-' or func in ('17', '18', '19', '20'):
             continue
         turn_type_str = g_turn2str[str(func)]
         if seen_s and ('l' in turn_type_str):  # 直行车道右侧出现左转