National Tourism & Mobility Overview

Privacy-preserving indicators generated from anonymized mobile network and approved big-data sources.

Analysis period

Geography

Data source

Visitor segment

↗ 8.4%

Estimated unique visitors

4.82M

National estimate • threshold applied

↗ 5.7%

Tourism trips detected

7.36M

Validated trip-classification model

↗ 2.1%

Active tourism zones

214

Across 64 districts

↘ 3.6%

Average stay duration

2.8 days

Tourist segment only

Live

Events processed today

1.24B

Last curated update 8 min ago

Visitor movement trend

Estimated visitors by day with seasonal comparison

Current periodPrevious period

Visitor density map

Aggregated district-level heat zones

Privacy-safe aggregation

Cells below the minimum publication threshold are suppressed.

Top origin–destination flows

Aggregated journeys between statistical zones

Origin	Destination	Estimated trips	Share	Change
Dhaka	Cox's Bazar	386,240	18.4%	↗ 12.8%
Dhaka	Chattogram	294,810	14.1%	↗ 7.3%
Chattogram	Cox's Bazar	217,450	10.4%	↘ 1.6%
Dhaka	Sylhet	192,340	9.2%	↗ 4.9%
Khulna	Sundarbans Zone	114,620	5.5%	↗ 9.1%

Live pipeline status

Ingestion through curated publication

Operational

Operator secure ingestNiFi • VPN/SFTP • schema validation

428 MB/shealthy

Event standardizationKafka + Spark streaming

23 mslag

Anonymization gateKey separation • privacy rules

100%applied

Curated indicatorsSpatial RDBMS • API cache

8 minfreshness

Next orchestration run: 22:30 UTC

Secure Data Ingestion

Manage encrypted files, streams and APIs from mobile operators and approved external sources.

Streaming

Mobile Operator A

Anonymized network events through BBS VPN gateway.

ProtocolSFTP + Kafka

Throughput428 MB/s

Last event18 sec ago

DQ score98.7%

Streaming

Mobile Operator B

Hourly encrypted partitions with manifest validation.

ProtocolVPN / SFTP

Throughput312 MB/s

Last event2 min ago

DQ score97.9%

Scheduled

Tourism Admin Data

Approved accommodation and destination reference data.

ProtocolSecure API

FrequencyDaily

Last sync06:00 UTC

DQ score96.5%

Attention

Cell Tower Registry

Spatial enrichment metadata and code-list mappings.

ProtocolSecure API

FrequencyWeekly

Last sync3 days ago

DQ score91.2%

NiFi flow registry

Schema checks, validation, routing and error handling

Flow	Source	Schedule	Last run	Records	Status
CDR Secure Receipt nifi/cdr_secure_v2	Operator A	Continuous	18 sec ago	18.2M	Running
Hourly Partition Load nifi/operator_b_hourly	Operator B	Hourly	41 min ago	12.8M	Complete
Tower Metadata Sync nifi/tower_registry	BTRC Registry	Weekly	3 days ago	42,918	Warning
Tourism Reference Load nifi/tourism_admin	Tourism API	Daily	16 hr ago	86,244	Scheduled

Processing & Orchestration

Operate batch and streaming pipelines across NiFi, Kafka, Spark and Airflow.

Secure IngestionNiFi • VPN/SFTP/API

Event TransportKafka topics

Distributed ProcessingSpark batch + streaming

Privacy GateAnonymize + threshold

Curated StorageSpatial RDBMS + SAN

PublishBI • GIS • REST API

Airflow DAGs

Scheduled workflows and orchestration state

Scheduler healthy

DAG	Version	Schedule	Duration	Success rate	Status
tourism_daily_curated 16 tasks • 4 parallel branches	v2.8.1	Daily 01:30	42m 18s	99.3%	Success
mobility_stream_enrichment 9 tasks • continuous	v3.2.0	Continuous	—	99.9%	Running
od_matrix_weekly 12 tasks • spatial aggregation	v1.9.4	Sun 03:00	1h 12m	97.8%	Scheduled
dq_reconciliation 8 tasks • all curated tables	v2.1.6	Every 6 hr	18m 04s	96.4%	3 retries

Data Lake & Metadata Catalog

Govern raw, cleansed and curated zones across SAN/object storage and the spatial RDBMS.

Raw zone

Immutable encrypted landing data

182.4 TB

Datasets46

Retention180 days

Growth3.8 TB/d

Cleansed zone

Standardized and quality-checked events

96.7 TB

Datasets38

Retention365 days

DQ score98.2%

Curated zone

Privacy-safe analytical products

14.2 TB

Products62

APIs18

Freshness8 min

Dataset catalog

Business metadata, ownership, classification and freshness

Dataset	Zone	Owner	Classification	Rows / size	Freshness	Quality
Curated Tourism Indicators curated.tourism_indicator_daily	Curated	Statistical Methodology	Aggregated	1.82B rows	8 min	99.1%
Origin–Destination Matrix curated.od_matrix_weekly	Curated	Mobility Analytics	Aggregated	486M rows	2 days	97.8%
Standardized Network Events cleansed.network_event_v3	Cleansed	Data Engineering	Restricted	96.7 TB	23 sec	98.7%
Cell Tower Spatial Registry reference.cell_tower_geo	Reference	GIS Unit	Internal	42,918 rows	3 days	91.2%
Tourism Zone Code List reference.tourism_zone	Reference	Tourism Statistics	Internal	1,284 rows	14 days	100%

Tourism & Mobility Analytics

Version-controlled algorithms for density, trips, home location, origin–destination and seasonal patterns.

01

Tourist vs. resident

Classifies visitors using temporal presence and home-location rules.

v2.4.1

02

Trip detection

Builds journeys from anonymized events and spatial transitions.

v3.1.0

03

Home location

Estimates origin zones with configurable night-time observations.

v1.8.5

04

Tourist density

Computes privacy-safe visitor counts per statistical grid and period.

v2.2.7

05

OD matrices

Aggregates validated trips between origins and destinations.

v1.9.4

06

Seasonality

Measures daily, weekly and seasonal tourism patterns and trends.

v2.0.2

Seasonal visitor pattern

Monthly estimated visitors by segment

TouristDay visitor

GIS & Mobility Explorer

Explore privacy-safe heatmaps, flow maps, zones and spatial indicators.

Bangladesh mobility surface

Schematic prototype view • district aggregation

Density heatmap OD flow lines Statistical zones

Published map values are aggregated and suppressed when the configured privacy threshold is not met.

Dynamic Report Studio

Build privacy-safe statistical reports with live charts, tables, maps and governed exports.

Live preview

Generated from curated, approved indicators

National Tourism Mobility Summary

Bangladesh Bureau of Statistics • August 2026 • National

PROVISIONAL

Estimated visitors4.82M

Tourism trips7.36M

Average stay2.8 days

Methodology version: tourism-v2.4.1Minimum aggregation threshold: 30

Recent generated reports

Governed outputs with version and approval state

Report	Period	Owner	Generated	Privacy check	Approval
Monthly Tourism Mobility Summary RPT-2026-00842	July 2026	Tourism Statistics	12 Aug, 09:42	Passed	Published
Eid Mobility Pattern Brief RPT-2026-00817	May–Jun 2026	Mobility Analytics	28 Jul, 15:18	Passed	Approved
District Visitor Density Annex RPT-2026-00794	Q2 2026	GIS Unit	15 Jul, 11:24	Review	Draft

Tools & Integration Hub

Manage the ToR-specified platform components, secure APIs and future ISDW interfaces.

NiFiConnected

Apache NiFi

Secure ingestion, routing, schema checks and error handling.

v2.1 • PROD

KFKConnected

Apache Kafka

Message and streaming transport for network events.

12 brokers

SPKConnected

Apache Spark

Distributed batch and streaming analytics workloads.

28 workers

AFConnected

Apache Airflow

Workflow orchestration, scheduling and recovery.

18 active DAGs

SQLConnected

Spatial RDBMS

Curated indicators, metadata and geospatial features.

Leader + follower

RDSConnected

Redis Cache

Low-latency caching for applications and APIs.

74% hit rate

G/PConnected

Grafana / Prometheus

Infrastructure, pipeline and business monitoring.

486 metrics

BIConnected

Commercial BI

Role-based dashboards, analytical views and publication.

24 workspaces

IAMConnected

Authentication Server

Directory integration, SSO and role-based access.

OIDC / SAML

APIConnected

API Gateway

Authorized access to aggregated indicators and metadata.

18 endpoints

ISDWPlanned

Future ISDW Interface

Standards-aligned exchange with the integrated data warehouse.

Design ready

VCSConnected

Source & Release Control

Versioned source, deployment scripts and controlled releases.

3 environments

Authorized API products

Aggregated indicators and metadata only

API product	Endpoint	Audience	Rate limit	Privacy policy	Status
Tourism Indicator API	/v1/indicators/tourism	BBS internal	1,000/min	Threshold 30	Active
Mobility Metadata API	/v1/metadata/mobility	Authorized partners	200/min	No event data	Active
GIS Aggregates API	/v1/spatial/aggregates	BBS internal	500/min	Grid suppression	Pilot

Data Quality Control

Monitor completeness, validity, uniqueness and timeliness from source to published product.

Completeness

98.6%

A+

Validity

97.9%

A

Uniqueness

99.8%

A+

Timeliness

96.2%

A

Quality trend

Curated datasets • last 14 runs

Rule exceptions

Issues requiring owner action

3 open

Rule	Dataset	Exceptions	Severity
Tower code reference match	Network events	12,482	Medium
Event timestamp within window	Operator B	2,941	High
Destination zone present	Trip segments	842	Medium
OD aggregation threshold	OD matrix	0	Passed

Data Migration Center

Govern source assessment, mapping, transformation, reconciliation and BBS validation.

✓DiscoverInventory sources

✓MapFields and codes

✓TransformPipeline execution

4ReconcileCounts and controls

5ValidateBBS acceptance

Migration work packages

Existing tourism and mobility-related datasets

Dataset	Source	Records	Reconciled	Owner	Status
Legacy Tourism Establishment Registry	Oracle 12c	86,244	100%	Tourism Unit	Validated
Historical District Visitor Tables	CSV Archive	4.8M	99.6%	Statistical Unit	Reconciled
Cell Tower Reference History	PostgreSQL	142,813	97.8%	GIS Unit	Review
Tourism Zone Boundary Archive	GeoPackage	1,284	100%	GIS Unit	Awaiting BBS

Security, Privacy & Compliance

RBAC, anonymization, encryption, audit trails and controls for Statistics Act 2013 and relevant BTRC/GoB requirements.

Active

Encryption

TLS 1.3 + at rest

VPN, SAN and database controls

Enforced

Role-based access

12 active roles

Directory integrated • MFA required

Passed

Privacy gate

100% outputs

Threshold and suppression checked

Planned

BCC VAPT

Readiness 86%

Evidence package in preparation

Role access matrix

Effective access to platform capabilities

Role	Raw data	Analytics	Publish	Admin
Management Viewer	—	✓	—	—
Statistician	—	✓	✓	—
Data Engineer	✓	✓	—	—
Privacy Officer	—	✓	✓	—
System Administrator	✓	✓	✓	✓

Security audit trail

Immutable platform events • last 24 hours

Privacy threshold policy applied

System • Tourism API publication • 10 minutes ago

Role assignment approved

Security Officer • Statistician role • 42 minutes ago

Failed authentication attempt

Unknown principal • API Gateway • 1 hour ago

Encryption key rotation completed

Key service • Curated RDBMS • 4 hours ago

Audit export generated

Internal Audit • SEC-2026-0842 • 6 hours ago

Compliance control register

Evidence status for the secure operating model

Control area	Requirement	Implementation	Evidence	Status
Legal	Statistics Act 2013	Purpose limitation and controlled dissemination	Privacy Design §3.2	Implemented
Telecom data	Relevant BTRC / GoB controls	VPN ingress, anonymization and restricted access	Security SOP §5	Implemented
Application security	BCC VAPT certification	Pre-assessment remediation in progress	VAPT tracker	In progress
Operations	Logging and audit trails	Central immutable event logging	Audit dashboard	Implemented

Monitoring & Operations

Unified Grafana/Prometheus view of hosts, VMs, pipelines, databases, APIs and business indicators.

Platform availability

99.97%

Within SLA

Active VMs

38 / 40

2 in planned maintenance

Pipeline success

98.9%

Last 24 hours

API p95 latency

184 ms

Healthy

Open alerts

2

1 medium • 1 low

Infrastructure utilization

PROD cluster • rolling 12 hours

Active alerts

Operational events requiring attention

2 open

SAN warm-tier utilization at 81%

Forecast to reach 85% in 11 days • Medium • assigned to DBA

Tower registry source delayed

Freshness threshold exceeded by 24 hours • Low • GIS Unit notified

No critical security alerts

All gateway, authentication and audit services healthy.

Pilot Evaluation & Go-Live

Track pilot data, methodology validation, stakeholder feedback and acceptance criteria.

Pilot implementation plan

Defined periods and geographies using approved anonymized data

Phase 3 of 5

Scope & geography approved

Dhaka, Chattogram, Cox's Bazar and Sylhet • Complete

Real data ingestion validated

Operator A and B pilot partitions • Complete

Methodology validation in progress

Trip and tourist classification against reference surveys • 78%

Stakeholder review

BBS, mobile operators and tourism stakeholders • Scheduled

Go-live acceptance

Final readiness report and signed acceptance criteria • Pending

Capacity Building & Knowledge Transfer

Three-week training for BBS officials covering technology, methodology, privacy and operations.

Week 1

Platform Engineering

NiFi, Kafka, Spark, Airflow, RDBMS, deployment and recovery.

Completion100%

Week 2

Statistical Methodology

Mobility data, tourism indicators, model parameters and interpretation.

Completion72%

Week 3

Privacy & Secure Use

Ethics, anonymization, RBAC, incident handling and safe publication.

Completion0%

Ongoing

Operations Lab

Hands-on monitoring, pipeline restart, backups and troubleshooting.

Readiness86%

Knowledge handover register

Editable documents, scripts, source and manuals for BBS ownership

Handover item	Version	Owner	Review	Status
User Manual	v1.6	Frontend Team	28 Aug 2026	Approved
Technical & Architecture Manual	v2.1	Solution Architect	30 Aug 2026	Review
Operations SOP	v1.4	DevOps	01 Sep 2026	Review
Configuration & Deployment Scripts	release-1.8.4	Platform Team	01 Sep 2026	Repository
Training Materials & Exercises	v1.2	Training Lead	24 Aug 2026	Published

Support, Maintenance & SLA

Two-year post-Go-Live technical support, fixes, minor enhancements, tuning and security patching.

SLA achieved

99.6%

Current support month

Open tickets

7

0 critical • 1 high

Mean response

18 min

All priorities

Support remaining

22 mo

Of 24 months

Service level targets

Proposed operational SLA with BBS

Priority	Example	Response	Resolution target	Availability
P1 Critical	Production unavailable	15 minutes	4 hours	24×7
P2 High	Major function impaired	30 minutes	8 hours	24×7
P3 Medium	Limited user impact	4 hours	2 business days	Business hours
P4 Low	Minor enhancement	1 business day	Agreed release	Business hours

Recent support activity

Incidents, maintenance and improvements

Kafka security patch completed

Planned maintenance • no service interruption • 28 Aug

API query optimization deployed

p95 latency improved by 24% • 24 Aug

Warm storage capacity ticket open

P3 • assigned to Database Administrator • 22 Aug

Monthly backup restore test passed

Recovery point and time objectives verified • 18 Aug

Project Governance & Deliverables

Coordinate the three-month implementation, BBS participation, stakeholder consultations, formal deliverables and 24-month support period.

Implementation period

03 months

From contract signature

Formal deliverables

13

Editable and PDF submissions

Core personnel

11

69 total person-months

Post-Go-Live support

24 months

Technical support and maintenance

Deliverable control register

Minimum outputs required by the ToR

8 in progress

#	Deliverable	Owner	Due	Status
01	Inception Report & Detailed Work Plan	Project Manager	Week 2	Approved
02	Architecture & Software Design Includes ERD and DFD	Solution Architect	Week 3	Approved
03	Security & Privacy Design and SOPs	Security Specialist	Week 4	Review
04	Operational DEV / TEST / PROD Platform	Platform Team	Week 9	In progress
05	Tourism & Mobility Analytics and GIS	Big Data Engineer	Week 9	In progress
06	Web-based Analytical Application	Application Team	Week 10	In progress
07	Dashboards, APIs & Visualization Tools	BI / API Team	Week 10	In progress
08	Data Migration Plan & Report	Database Team	Week 10	Reconciliation
09	Monitoring & Operations Plan	Network / DevOps	Week 10	In progress
10	Training Plan, Materials & Completion Report	Training Lead	Week 11	In progress
11	User, Technical & Operations Manuals	Technical Writers	Week 11	Review
12	Pilot Evaluation & Go-Live Readiness Report	QA Lead	Week 12	Planned
13	Final Project Completion Report Scale-up and future ISDW recommendations	Project Manager	Week 12	Planned

Human resource deployment

ToR staffing profile and planned assignment coverage

11 personnel

Designation	Persons	Engagement	Person-months	Primary responsibility
Project Manager	1	3 months	3	Governance, coordination and acceptance
Big Data / Data Engineer	1	3 months	3	Processing, analytics and data engineering
Backend Developers	2	6 months	12	Services, APIs and post-deployment support
Frontend Developers	2	6 months	12	Applications, dashboards and support
Network Administrator	1	3 months	3	Network integration and operations
Database Administrator	1	3 months	3	RDBMS, storage, backup and recovery
Security Specialist	1	3 months	3	Security, privacy, compliance and VAPT
Quality Assurance	1	6 months	6	QA, UAT and post-deployment verification
Support / Software Engineer	1	24 months	24	Two-year post-Go-Live support
Total	11	Project + support	69	BBS-directed deployment

Platform Administration

Manage users, environments, publication settings, backup policy and release configuration.

Healthy

DEV Environment

Development and component integration.

Releasev1.9.0-dev

VMs8

Healthy

TEST Environment

QA, UAT, security and performance validation.

Releasev1.8.5-rc

VMs12

Live

PROD Environment

High-availability production platform.

Releasev1.8.4

VMs40

User directory

Authentication server and directory synchronization

User	Role	Unit	Last access	Status
Ayesha Rahman ayesha.rahman@bbs.gov.bd	System Administrator	ICT Division	Now	Active
Mahmudul Hasan m.hasan@bbs.gov.bd	Statistician	Tourism Statistics	18 min ago	Active
Nusrat Jahan nusrat.jahan@bbs.gov.bd	Privacy Officer	Data Governance	1 hr ago	Active
Rafiq Uddin rafiq.uddin@bbs.gov.bd	Data Engineer	ICT Division	4 hr ago	On leave

Core policy settings

Changes require controlled approval

Default publication threshold

Raw-zone retention

Require two-person publication approvalStatistician plus Privacy Officer. Enforce MFA for privileged rolesApplies to administrators and data engineers.