DISEASE CHARACTERISTICS: Histologically or cytologically proven non-small cell lung cancer Squamous cell lung cancer Large cell lung cancer Adenocarcinoma lung cancer Mixture of above Locally advanced disease for which the patient declined aggressive treatment or that is unsuitable for aggressive curative treatment due to at least one of the following: Performance status of ECOG 2 or 3 Otherwise unexplained weight loss greater than 10% in the last 6 months Bulky disease that cannot be irradiated safely to high doses Inability to tolerate chemotherapy Cytologically positive pleural effusion OR Clinically or radiologically proven metastatic disease for which palliative chemotherapy is not planned in the first 38 days after radiotherapy No more than one brain metastasis allowed One of the following symptoms identified as the index symptom: Loss of appetite Nausea Vomiting Cough Coughing up blood Chest pain Shortness of breath Difficulty swallowing Fatigue Must have symptoms related to intrathoracic lung cancer that are amenable to radiation palliation

PATIENT CHARACTERISTICS: Age: 16 and over Performance status: ECOG 0-3 Life expectancy: Greater than 3 months Hematopoietic: Not specified Hepatic: Not specified Renal: Not specified Other: Fluent in English or French No loss of sight or other inability to complete questionnaires or diary Not pregnant No concurrent terminal illness No other active malignancy that is causing symptoms or is expected to progress in the next 3 months

PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: At least 30 days since prior chemotherapy and failed No planned chemotherapy within 38 days after study treatment Endocrine therapy: Not specified Radiotherapy: No planned laser therapy within 38 days after study treatment Surgery: At least 30 days since prior surgery and failed Other: No planned photodynamic therapy or sclerotherapy within 38 days after study treatment