While conceding that the plaintiff has been injured and raising no question as to his due care, the defendant’s first contention is, that there is no evidence that the accident was caused by its negligence. The jury however would be warranted in finding that the horse driven by the plaintiff, although ordinarily gentle and well broken, becoming frightened by the sudden flapping of the canvas cover on a grinding machine owned by the defendant and left on its railway track located in the public way, over which the plaintiff as a traveller was passing, “bolted or shied,” throwing him out of the carriage against a pole, causing serious injuries. It is settled that in common with other travellers the plaintiff had the right to a free and unobstructed use of the street in so far as it had been wrought for travel, subject only to the lawful right of the defendant to maintain, its track and to operate its cars. Hennessey v. Taylor, 189 Mass. 583. O’Brien v. Blue Hill Street Railway, 186 Mass. 446, 449. The machine which was heavy and cumbrous had been used in grinding joints in another street the day before the accident, which occurred on Sunday. But instead of being placed in the defendant’s storage house, which the jury could say was easily accessible, it had been transported on a “crane car” and left in the position previously described where it remained until used on the following Monday. It is unnecessary to decide whether the machine would have been an unjustifiable obstruction if it had been in operation, for the *172city ordinance then in force required that, “No person shall in any highway or street place any obstruction of any kind without a written license from the street commissioner,” which license the defendant admits had not been obtained. The question, whether under the circumstances the machine rendered the street dangerous to travellers, was for the jury, and, if they found that it constituted an obstruction, the defendant’s failure to procure a license could be properly considered in passing upon its negligence. Leahy v. Standard Oil Co. of New York, 224 Mass. 352, 364. Hurley v. Boston & Maine Railroad, 228 Mass. 365, 367. Finnegan v. Winslow Skate Manuf. Co. 189 Mass. 580, 582. The question of the defendant’s liability was properly submitted tb the jury.
The plaintiff, when injured, having been a teamster in the employ of a corporation which had become a subscriber under St. 1911, c. 751, and amendatory acts, and having given notice to the insurer of a claim for compensation, the remaining contention is, that he cannot maintain the present action. By St. 1911, c. 751, Part III, § 15, as amended by St. 1913, c. 448, “Where the injury for which compensation is payable under this act was caused under circumstances creating a legal liability in some person other than the subscriber to pay damages in respect thereof, the employee may at his option proceed either at law against that person to recover damages, or against the association for compensation under this act, but not against both, and if compensation be paid under this act, the association may enforce in the name of the employee, or in its own name and for its own benefit,'the liability of such other person, and in case the association recovers a sum greater than that paid by the association to the employee four fifths of the excess shall be paid over to the employee.” If for the purposes of our decision it is assumed that the plaintiff’s injuries arose out of and in the course of his employment, he could not concurrently proceed at common law for damages and under the statute for compensation. Barry v. Bay State Street Railway, 222 Mass. 366, 371. Hall v. Henry Thayer & Co. 225 Mass. 151. And where compensation is accepted the insurer at once is subrogated to the employee’s cause of action. Turnquist v. Hannon, 219 Mass. 560. The plaintiff, who is not shown to have been ignorant of his rights or to have lacked knowl*173edge of all material facts, had at his command the choice of remedies or of remedial rights which were inconsistent and not analogous. Snow v. Alley, 156 Mass. 193. Cripps’s Case, 216 Mass. 586, 589. Turnquist v. Hannon, supra. It was for him to decide whether he would bring suit, or rely on the statute. The action at law, having been begun and pending before he gave notice to the insurer of any claim for compensation, is therefore under these circumstances an election by which he as well as the defendant is bound. Frisch v. Wells, 200 Mass. 429, 431. Cripps’s Case, 216 Mass. 586. Turnquist v. Hannon, supra. Hall v. Henry Thayer & Co. supra. St. 1911, c. 751, Part III, § 15. St. 1913, c. 448.
The right of recovery not having been barred, it becomes unnecessary to consider whether the payment by the plaintiff’s employer of his wages during the first week of disability was made under the statute, or was a gratuity because of his unfortunate condition, or whether his subsequent notice of withdrawal to the insurer operated as a waiver of the claim to compensation.
Exceptions overruled.