Background: Children are generally care free and like to travel park and surroundings. A lot of children get hurt while cycling and crossing the road. The Awareness of road safety rules among high School children, help them to get an overall idea about road traffic rules and it also help them to practice in their daily life. In view of this fact, we aimed to assess the effectiveness.of educational intervention on road safety rules among high school children in Thrissur.

Objective: Assess the pre and post interventional level of knowledge on road safety rules, evaluate the effectiveness of educational intervention on road safety rules and associate the pre interventional level of knowledge of high school children regarding road safety rules with their selected demographic variables.

Materials and Methods: The research approach used in the study was quantitative approach. Pre experimental pre test and post-test design was adapted. The setting of the study was St. Thomas Higher Secondary School, Thope, Thrissur. The sample were selected from 8 to 10 standard by using purposive sampling technique (150). Structured questionnaire was used for the study. After pre-test educational intervention regarding road safety rules was provided post test were collected.

Result: Findings of the study revealed that among the high school children 76 (50.7%) of the children belonged to the 14 years of age 35 (23.3%) of children to 13 and 15 years of age respectively and only 2.7% of high school children were in the age group of 12 years. 130 (86.77%) of children mode of travelling were using bus to reach the school; 16 (10.7%) of children were using cycle and only 2.6% were coming to the school by walking. Among the high school children 76 (50,7%) children were belongs to urban residence and 74 (49.3%) were belongs rural residence. In the pre-test, 19.3% have poor knowledge, 49.4% have average knowledge and 31.3% have good knowledge regarding road safety rules. In the post-test, 52% have good knowledge, 36% have average knowledge and 12% have poor knowledge regarding road safety rules. There is significant association between pre interventional level of knowledge among high school children with their age, mode of travelling and occupation of their father.

Conclusion: Mean post interventional knowledge (19.71%) was higher than preinterventional level of knowledge (17.10%). Here there is significant difference in the pre interventional and post interventional level of knowledge. This reveals that educational intervention regarding road safety rules was effective.