Mattie McGrath says he's "very bothered" about the proposed merging of Garda divisions.
The independent TD says pushing ahead with the plans to amalgamate several county divisions would be "reckless" and "beggar belief".
At their annual conference this week, the AGSI heard that a number of Garda divisions will be merged - including Tipperary and Clare, Meath and Westmeath, and Wicklow and Wexford.
The Irish Examiner reports there are now concerns among middle-ranking gardaí that it could take gardaí up to two hours to arrive at serious crime scenes if the plans go ahead.
On Lunchtime Live, Deputy McGrath - who represents Tipperary - said he's not happy about the proposed mergers, including the one that would cover his own constituency.
He said: “Oh I’m very bothered, as are my constituents and ordinary rank & file members of An Garda Síochana.
“It’s a two-hour drive from many parts of Tipperary to Ennis. It’s not acceptable.
“We are starved for resources… there’s a crazy situation with delays responding to 999 calls. We just haven’t got the numbers on the ground.”
He said some of the other proposed mergers at least reflect a "natural geographical area", but the proposals for his own county beggar belief.
He said getting to Ennis from parts of Tipperary requires passing into Limerick, and it'd be a two-hour drive to make the trip.
Kerry TD Michael Healy-Rae, meanwhile, said he's also "extremely worried" about what's being proposed.
He said: “When we’re breaking up Garda divisional areas… we have to be so careful we don’t leave a vast area [cut off].
“It is no exaggeration to say I can leave parts of Kerry and drive to Dublin quicker than I could actually drive across the county of Kerry."
The independent TD suggested morale is "very low in the gardaí" at the moment.
He claimed: "We know people in the hierarchy are looking at the gardaí themselves.
"In my opinion, the gardaí are under attack from the very people who should be promoting and encouraging them.”