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APPENDIX F fatal, injuries to passengers and employees. This recommendation, in conjunction with the recommended change of Rule 515, will insure that two trains moving in the same direction on the same track will not occupy the same block except by a train order which will reduce to a minimum the risk of a collision between them.

This accident also involves the maximum specified speeds for trains moving under various signal indications. All knowledge of train speed during the accident, however, must be based upon estimates of persons or indirect inference, because the older, following train was not equipped with any form of speedometer. In order to follow the rule the engineer of that train had to estimate his speed which is an unreliable method of determining speed. The new Highliner trains are equipped with speed indicators, and a speed indicator was installed in an older train by the railroad for the purpose of operating tests a few days after the accident.

The Safety Board recommends that the ICGRR:

4. Provide a reasonably accurate speedometer for the use of engineers required to operate trains wherever rules require limit or control of speed.

These recommendations will be released to the public on the issue date shown above. No public dissemination of the contents of this document should be made prior to that date.

Reed, Chairman, McAdams, Burgess and Haley, Members, concurred in the above recommendation. Thayer, Member, was absent, not voting.

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