sound truck would be a detriment to traffic safety, but, as has been pointed out above, traffic safety is not the only area in which police power may be exercised. In Kovacs, the United States Supreme Court said: “The police power of a state extends beyond health, morals and safety, and comprehends the duty, within constitutional limitations, to protect the well-being and tranquility of a community.” (336 U.S. at p. 83.)
The majority concludes that “the vice of the present ordinance lies in its practical prohibition of the conveyance of a message to the public, ’ ’ and “. . . the ordinance sweeps within its broad ambit the constitutional right to tell a whole story by means of this method of communication.”
Mr. Justice Peters, in a recent unanimous opinion of this court, American Civil Liberties Union v. Board of Education, ante, pp. 203, 220 [28 Cal.Rptr. 700, 378 P.2d 980] said: “In the final analysis, the determination that a particular statute is or is not too broad in the constitutional sense turns not so much on its language as upon its effect. A statute may be phrased in words that are ‘broad,’ in that they convey general rather than specific concepts, and yet be the means of stating a regulation that is narrow and limited in its application. (See for example the two ordinances involved in Saia v. New York, 334 U.S. 558 [68 S.Ct. 1148, 92 L.Ed. 1574], and Kovacs v. Cooper, 336 U.S. 77 [69 S.Ct. 448, 93 L.Ed. 513, 10 A.L.R.2d 608].)”
The effect of the ordinance may be to prohibit plaintiff from conveying a sustained message, but the ordinance is not the sole cause thereof. The same effect may occur in a variety of ways, e.g., a motorist or pedestrian passing a stationary truck would also receive an incomplete message; and even a willing listener cannot be compelled to hear a message from beginning to end. Furthermore, the mere belief as to the precise way in which plaintiff’s speech will bring about the best results does not justify invalidating the ordinance. “Freedom of speech or press does not mean that one can talk or distribute where, when and how one chooses. Rights other than those of the advocates are involved.” (Breard v. Alexandria, 341 U.S. 622, 642 [71 S.Ct. 920, 95 L.Ed. 1233, 35 A.L.R.2d 335].)
The effect sought by plaintiff, i.e., a guarantee that a complete message be conveyed, can only be achieved if it is granted an exclusive permit. If others are permitted the same freedom at the same time and place, each sound truck