Thanks, Steve. You provided two answers.
Chuck Norcutt
On 4/30/2013 11:15 AM, Steve Troy wrote:
> ----- Original Message -----
> From: "Chuck Norcutt"
> Subject: Re: [OM] Crossed Railroad tracks in Grinnell Iowa
>
> Never heard of it. What's does a ball indicator indicate?
>
> Chuck Norcutt
>
>
>
>
> When the ball is "low" it means the track ahead is occupied. When the ball
> is "high" it means clear to proceed, hence the term "highball."
>
> Steve Troy
>
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