Called Houston 311 line a few days ago to report something wrong with the train tracks that must be causing the frequent horn. I was routed to the nonemergency police line to file a report. Case officer informed me they have full discretion in horn use during the day (not so much during quiet hours after 10pm), so a report was not warranted as my specific complaint was during the day. Officer also promised to contact the Union Pacific (maintainer of the rails) and let them know something was causing the train to sound its horn around this intersection.

call and report here: https://www.up.com/aboutup/contact/customer_contacts/index.htm

Case Closed
Service Request Resolved
Thank you for contacting us, Transportation and drainage crews will be replacing devices within the quiet zones within the next few weeks. Trains have been given orders to use their horns at this time until work is completed. We apologize for the inconvenience.

I spoke with a supervisor at 311 this morning and she read me the email from Union Pacific, they are hoping to be completed today with all the repairs to the damaged rr arms.