Polegate is a junction town, which is roughly the entire pitch. About one worker in twenty takes the train to work. Nearly sixty bus stops sit inside the town boundary. Two-thirds of postcodes get gigabit broadband, and every postcode can get superfast. Connectivity is why the town exists, and mostly why people move here.
The railway is the reason Polegate is a place rather than a hamlet: the town grew in the 1840s specifically around the arrival of the line, and Polegate Rail Station still sits at the middle of the town. From it, direct trains run to London, Brighton, Eastbourne, and Hastings along the coastal line. Neighbouring stations along the same corridor include Berwick to the west, Hampden Park and Eastbourne further south, and Pevensey and Westham and Pevensey Bay to the east. Around one worker in twenty commutes by train. Buses take about one in eighty. The town has around sixty bus stops within its boundary, which is a decent density, but the modal share tells the story: buses are the backfill, not the backbone. What the buses do well is get people from the edges of the town into the centre, and out to Willingdon and Eastbourne. What they do less well is compete with the car.
On broadband, two-thirds of postcodes can get gigabit, and every postcode can get superfast. None sit below the universal broadband minimum. Mobile coverage is essentially total: every postcode gets at least one operator's 4G or 5G, and about 97% get every operator. If working from home is the real transport question for a household, the answer here is the same one you would get for a fibre-first suburb of a bigger city. About one worker in four already works from home, which suggests the population has already noticed.
For getting about physically, the town centre of Eastbourne, which is the nearest employment hub of any real size, sits about a quarter of an hour away by car and roughly twenty-five minutes by public transport. A cycle takes about the same as public transport. Walking the whole way takes just over an hour. The nearest primary school is roughly ten minutes on foot for most postcodes; the nearest secondary is nearer twenty. Just over half the working population drives to work, about one in twenty walks, and around one in sixty cycles. This is a car-dependent town with a train station bolted onto it, which is exactly the shape south-coast commuter towns take.
Average for connectivity at three out of five. The train station and the broadband each earn a serious tick. The bus network earns half a tick. The walking geography earns none. Perfectly adequate is the honest phrase. Not the best-connected town on the south coast, and not the worst, and mostly the point of moving here in the first place.