Dhaka Metro Rail Line 5 - Northern Route

Mechanical consultancy for Dhaka Metro Rail Line 5 (Northern Route), covering mechanical design, HVAC, fire protection and detection, supervision, and sewage treatment plant (STP) systems.

Project metadata

Location: Bangladesh

Overview

Engr. Md. Shahjahan Alam serves as Mechanical Consultant for Dhaka Mass Rapid Transit Development Project, Line 5 — Northern Route. His assignment covers mechanical building services within the detailed design, tender assistance and construction supervision consultancy.

Professional role

Mechanical Consultant

Engineering scope

The technical scope includes station and service-room HVAC; ventilation for pump, generator and electrical rooms; IG100 clean-agent suppression for telecommunications, IT and signalling rooms; borewell and water-storage design; domestic water treatment and drainage; septic tanks and STP systems; and rainwater harvesting. Lift and escalator capacity analysis, BMS integration considerations, and generator ventilation, cooling and fuel systems also form part of the assignment.

Responsibilities

Mechanical design — design calculations, drawings, technical specifications and bills of quantities.
HVAC and ventilation — cooling-load calculations, equipment selection, ductwork and natural and mechanical ventilation.
Fire protection and detection — hydrants, sprinklers, fire pumps, clean-agent suppression and life-safety coordination.
Water and sanitation — water supply, drainage, sewage treatment plants and rainwater harvesting.
Supervision and coordination — mechanical works supervision and coordination with other engineering disciplines.

Contribution

His contribution brings together design calculations, equipment selection, coordinated drawings, BOQs, technical specifications and tender documentation. The work includes fire-pump sizing, hydraulic design, water-demand and drainage calculations, and preparation of operation and maintenance requirements for mechanical systems.