I would make sure that you activate the tactical & talk service types in addition to dispatch for law, fire, EMS, & multi- service types.
We're having periods of freezing rain, alternating with sleet and snow, so the roads are slippery, especially on bridges. What's liquid at present will be black ice tomorrow morning, until the temp goes up enough to start melting. Depending on exactly where you are, you may see mostly sleet or freezing rain at present, but later tonight it's projected to change to snow only. Timeline from one of the local media outlets
here. There is a ground stop on flights from DFW Airport due to the icing. Was supposed to expire at 5pm, but now extended to 7pm.
It likely would activate more than you want, but TxDOT road crews use the Public Works service type, as do a couple of "ice ops" TGIDs on NTIRN for the city of Dallas.
Do you have the DMR upgrade? A number of the
TxDOT frequencies are DMR. What you might consider is appending the TxDOT channels to a Favorites list, and edit the service types to "Custom 1" or "Custom 2", so that you could include them without bogging down on Public Works channels for every city & county that you go through. For TxDOT, it's mostly one or two channels per channel, so it would not take long to edit the service types, including only the counties that you'll pass through.