The Tyrone Dobbs actor, who joined Corrie in 1998, hopes to equal his late friend Bill Tarmey's 31-year service to the Manchester-based serial.
"I'm starting my 15th year, which just feels crazy to me," he told the Radio Times. "Bill desperately wanted to get to 30 years and, in the end I think he did 31.
"And recently, I've started to realise that I'd quite like to do 31 years and emulate Bill Tarmey. I don't think I've any chance of catching Bill Roache – I don't think they'd have me that long, to be honest. But if I could get to those years of service that Bill Tarmey [did], then I'd be thrilled."
Giving an insight into his close friendship with Tarmey, Halsall recalled: "When I started on Corrie, I'd just left school. I'm a Salford kid born and bred and I'd grown up watching Coronation Street.
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"So there I was with this dream job and I'm going out drinking and getting recognised and Bill sat me down and told me about all the options of how my life could go.
"And then he said, 'But you've got no choice - you're going down this road!' He steered me along the path of my career.
"I'm so lucky to have had Bill. He took me under his wing and if it hadn't have been for him, I don't think I'd be stood here right now."
The 30-year-old added: "Bill was very much like a father figure to me both on and off screen. He'd often ring me up of a night and, even after he'd retired, we'd meet up every other Thursday in the pub to have a beer.
"He was a huge part of my life. He knew what I thought of him and I knew what he thought of me. It's not something we ever hid. He knew how much I loved him and vice versa."
However, Halsall, nominated for 'Serial Drama Performance' at this year's National Television Awards, admitted that he would find it difficult to speak about Tarmey in his acceptance speech should he win the gong.
"I'd like to [dedicate the award to Bill], but I honestly think that if I went up there and tried to speak about Bill, it would feel too raw," he said.
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Watch Alan Halsall discuss Tyrone's upcoming wedding to Kirsty with Digital Spy below: