Generally, traffic offences are concerned with many factors; they are environmental conditions and disables of cars as well as personality and behavior problems of offenders themselves. Among them, we took up driver’s personality problems in this study.

The Y-G test and social research were performed to 183 male adolescent traffic violators and accident drivers.

The subjects were divided into twelve groups; N (non-licence), S (speed), M (miscellaneous), P (accident to person), B (accident to subject); P-N, P-S, P-M; B-S, B-M, P-B and C (control).

We chose also A (having official records of criminals in addition to traffic problems) and S (no record) groups among them overlappingly.

Using the results of the Y-G test, we prepared the AT1 and AT2 Scales and the Accident Scale for the purpose of discriminating the groups.

There are eight vectors in the AT1 Scale: N, S, M, P, M-P and B for traffic offences; A and S for delinquency (Table4). There are seven vectors in the AT2 Scale: N,S,M,P,M-P,B and C (Table 5).

Both scales discriminated the ex-groups with fairly good level; The vectors of the highest and next scores tended to point out their violations or accidents at 60～80% (Table 7～1 0). The accident scale discriminated the accident drivers at 66.5% (Table 13, 14).

We concluded that the traffic offences had relation to driver’s personality characteristics very much.

From the social psychological points of view, we research the driving attitude and norm consciousness of juvenile automobile offenders.

Research 1 : By Sogo’s “Driving Attitude Test”, juvenile automobile offenders (69) taken to our Home were compared with professional taxi drivers (76). The most remarkable outcomes are following; taxi drivers who are professional adults have bad attitude because of their vocational conditions, such as various relationship with their passengers, their income and or competitive consciousness among their fellows......etc., the driving attitude of juvenile automobile offenders includes a playing consciousness, for example, the pursuit of speeding thrill, competitive play of car, and or disregard for legal code itself......etc......

It is infered that these phenomena are just the same problems about juvenile delinquency from the viewpoint of social maturity.

Research 2. : We constructed the new type “Driving Attitude and Norm Consciousness Test” (Questionnaire), and compared two groups; juvenile automobile offenders (87) and juvenile delinquents qualified (55). Among the juvenile delinquents there are many automobile offenders (85.5%), and the 21.5% of juvenile automobile offenders were charged on some crimes. Automobile offenders with some criminal records have worse driving attitude than the group of automobile offence only, in regard to the attitude of speed and the norm consciousness.

In general, automobile offences are regarded as peculiar crimes or offences in limitted situation, but we infer that the offenders who heve much anti-social value system commit more traffic violations, and that driving attitude may be rather influenced by the way of daily life.

In our modern society, norm or driving regulation is broken more easily than the case of penal norm, because of the differences of their socio-cultural functions.

This report is the first step of our further research, and we had letter to study into subjects concerned with non-offence groups to assure our hypothesis.